I am a big fan of the Hotel Concortel - http://www.hotelconcortel.com/en/index.htm

Very well located in the 8th arrondissement on a quiet street near the Madeleine Church. The rooms and baths are larger than others I have had for a similar price in Paris. Friendly and helpful English-speaking staff. Reasonable rates (see the internet specials on their web site). Although they are a Hotel by name, I consider them comparable to a bed and breakfast accomodation. And they serve what I think are the freshest, best croissants that I have eaten in Paris accompanied by freshly-squeezed juice.

Their web site will even give you directions and rates to the hotel from either CDG or Orly airport using taxi, RER, shuttle or bus.

Regards, Mark Los Angeles, CA