Loved my Hoyt for the past 3 years, but need something new and shiny to get me excited to shoot again. I prefer a longer ata as I primarily do spot and stalk in western CO but also do some tree stand hunting in AR and CO. Selling my 16' Hoyt CD 34 in favor of a Mach 1. For me, the Mach 1 is in a league of its own. Not only is it super light and stable, but the 32" ata is a nice middle ground for compact yet a forgiving size. The grip is simply amazing. It feels comfortable and holds on target solidly for such a light bow. One of the pro-staff at the shop recommended basing a lot of your decision on how the bow feels in your hand. So in a closed eye comparison, the Mach 1 took the cake for me. The runner up was easily the Mathews VXR 31.5. Very few bows are as vibration free, shoot as clean, and offer the customizability of the switch weight modules which transform your bow from 60 to 65 to 70 to 75 all with a simple mod swap, no bow press needed. So if you like to target shoot, you can run 60 or 65lbs, and come hunting season you can throw on the 70 or 75s. Pretty cool. The 28 and 31.5 VXRs might also be a great match for you since you are tree stand hunting. Only thing I'll say about the VXR is start with a lower poundage. The bow is super fast and those big cams can take a little elbow grease towards the end of the draw cycle.
Prime Black 3 - One of the best grips, great balance, too much vibration for me.
Hoyt Axius - Clean draw, great arrow release, typical Hoyt.
PSE 33 NXT - Easiest to draw, fast for a 33, easy to hold on target, and smooth release.
PSE Carbon Air Stealth Mach 1 (32") - Best everything.
Mathews 31.5 VXR - Smooth draw with a little hump at the back, fast, dead in the hand, great balance, fast.
Good luck!