I would recommend going and shooting them all, but I do have a few personal favorites, and a few not so favorites.
Mathews: Apex 7 (target), Drenalin or Drenalin LD (hunting)
Hoyt: Katera (hunting)
PSE X-Force HF7 (hunting)
I like the Katera best for hunting, but that is just because the Hoyts have a bit of a valley in their cam cycle (which is uncomfortable), but when you hit the wall, it is solid, and the Hoyts just feel like they are going to take off faster than any other bow. Plus, then are very well balanced and have the least hand vibration of any bow I've ever shot.
If you want a smooth as silk cam cycle...I honestly think it is impossible to beat a Drenalin or a Drenalin LD.
The X-Force is just on my list because I want one, just to say I have one and because it is fast as heck. I don't think they are the best, but it is fun to say you have the fastest bow in the world! hehe.
2010 Mathews Monster 7
2009 PSE X-Force GX
2008 Mathews Apex 7
2007 Hoyt Vectrix