"I went through reviews of the hotel and some people claim there the hotel offers Free Wifi, some claim it's not. There's alot of contradicting (What? Information? Opinions? any suggestion?..) "
Whichever word you choose, please note that it's a lot, not alot of it.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.