Transportation from Charles de Gaulle airport to a hotel next to Eiffel Tour (Hotel du Cadran)?

I usually stay on Rue Cler street which is very close to where you are staying. We catch the Metro at CDG airport and ride it all the way to St. Michaels Station (underneath Notre Dame) and then switch over to the Yellow (C) Line which will take you to several stations to exit from, I use the Invalides or La Tour Maubourg exits. Riding the Metro is the cheapest way to get to Paris unless you have more than a carry-on or backpack, then all the luggage becomes an issue. A taxi will work fine but expect to pay around 50 euros, there are buses but I have never used them. I love Paris, you will have a wonderful time, for a great cafe for a lunch or supper try Cafe Du Marche, it's on Rue Cler and within 3 blocks of the Effiel Tower and for 10-12 Euros you can get a great meal

Best is open to various meanings. I've stayed near there and for me the best way to travel from the airport is to walk out of the terminal to the taxi rank, ignoring anyone who approaches you asking if you want a taxi, and have the taxi manager get you in to a cab. I've paid a range of prices depending on the traffic. I think the most was around 60€.

I don't want to mess with the train/Metro when I am jet lagged and have luggage.

Have the name and address of your hotel typed or printed on an index card you can just hand the driver.

"Have the name and address of your hotel typed or printed on an index card you can just hand the driver."

You should do this regardless of how you plan to get to your hotel. Be sure to include the postal code (for Paris, it's five digits starting with 75) and the phone number (in case your driver needs to call the hotel for exact directions; I haven't needed that in Paris, but have in other places).

This way, you will always be prepared to take a taxi; even if you plan to use another method, jet lag may change your mind. I have every hotel written out for every place I go, so I can show it to taxi drivers or anyone else I need to ask for help in finding it.

As Pam said, "best" is always a judgement call. Do you want fastest, easiest, cheapest? How many are you? How comfortable are you with public transportation, or finding your way through unfamiliar places? Are you packing light or heavy? Is there anyone in your party with mobility restrictions?

Rick's books on France and Paris have details on how to get in from the airport to the Rue Cler area. You can read about what's involved in non-taxi methods, and see if these seem reasonable to you, or if you'd prefer a taxi. Remember that when you are freshly arrived and jet-lagged, you are most vulnerable to being pickpocketed, misplacing or losing things, getting lost yourself, etc - so if you're at all unsure, a taxi on arrival is a good investment. For your return to the airport, you'll be much more familiar with where you're going and what you're doing, not to mention fully rested, so shuttles and the metro/RER can work well. That's just what I did for my recent trip to Spain. On arrival in Madrid, I just took a taxi to my hotel. On my departure from Barcelona, I took the airport bus which was about 6 blocks from my hotel; but I knew exactly where I was going by then.

I arrived in Paris (CDG) in both June and July of this year and used a combination of methods that are so clearly explained in RS Paris Guide Book. Hope you have one, if not you can order one elsewhere on this web site.

RER train is 10 Euro and you can switch to metro once in Paris or take another RER to your hotel area. Your hotel web site will probably include directions; it will definitely indicate the RER or metro stop you need. All sites in Paris include that information in their website (restaurants, museums, hotels etc)

If you take the train, be sure you are pickpocket proof; no wallets in pockets or backpacks. It is a good situation in which to use a money belt or a neck purse under your clothes.

We usually take a taxi these days; if you do this, use the official taxi queue; don't go with someone soliciting rides in the terminal. This will cost about 55 or so Euro to this location. Baggage is one Euro per bag in trunk, 4th and up passengers are 3 Euro each.

We have used www.interserviceprestige.com a number of times and will use them again. They are very reliable, wait for you as you exit with your name on a board and you don't pay them untill you reach your destinatiion. I highly recommend them. We always stay in the area you will be in. Have a great trip.

RER B to St Michel then RER C to Pont de l'Alma.
Then 15 mins (1km) walk to the hotel.

Of course that is a long walk to the Hotel du Cadran, which is closest to the Ecole Militaire stop on the No 8 Metro line.
"Best mode" leaves a lot to interpret. Might be most convenient without regard to cost (taxi or private transfer), cheapest (RER B then changing twice on the Metro). Depends on how many traveling together and how much luggage. You could take the RER B to Les Halles, then walk the underground passage to Chatelet, go upstairs to Rue de Rivoli and take the No 69 bus to about 200 meters from the hotel. This would require another 1.80 euro t+ ticket or 2 euro direct to the driver. I wouldn't try that unless I was traveling VERY light.

You do not mention how many of you are traveling. For two, it's probably less expensive to take public transportation, but is it worth it? For three, it's a toss-up and a lot more convenient to take a cab. Keep in mind that transferring lines on the metro often includes stairs to climb. If your luggage is packed, it's not too fun lugging it up/down several flights.