help choosing a bike
 

Hi Guys,
New here looking for some advice. I am in market for a used bike and I can get one of three bikes in the range of $200-$250 Canadian, which one you recommend? or maybe are there any better choices? the usage would be recreational only, mostly on side walks or park trails. I would greatly appreciate your help.

1. 2005 TREK 4500
2. 2005 GIANT BOULDER SE
3. 2008 IRONHORSE WARRIOR 3

Anyone? :)