Difficult to compare bikes based on the price tag alone. You have to examine the components to figure out what one will be the best one.
A couple rules of thumb: A bike that doesn't fit well isn't a good deal, no matter how inexpensive it is. Also, quality and durability are not terms that you can typically apply to a $200 bike.
Bear in mind that at this price it isn't about lightweight parts and "high performance". The difference will be in quality and durability. If you want it to last a long time and plan on using it often, don't shop for the absolute cheapest one out there...you will be quickly disappointed in the purchase.
Go back to the bike shop with a budget and tell the sales person how you plan on using the bike. How often, what terrain, etc. They will help pick out a few models to try.
Buy the one that fits you the best and from the shop you are most satisfied with.