I think the question speaks for itself, what's your favorite free hosting service? In fact, what is also your least favorite free hosting service?
Free hosting is not something valuable for serious projects. But there are some of these services which you can use for start:
http://www.50webs.com/
http://www.awardspace.com/
http://www.atspace.com/
http://www.leadhoster.com/
http://www.byethost.com/
http://www.x10hosting.com/
Has someone had the bad experience with these hosting companies?
I never had experience with the free hosting websites. I've tried www.000webhost.com and 0lx.com. Weebly is quite good but you are only allowed to have two websites/blogs to be hosted there.