After reading through your post and all the replies my pick out of the ones you listed would be the Mathews FX.


Why?

Because it is the only one out of the bows you listed that actually is offered in the 31 inch draw length that you specified....and just about everyone else knows that draw length is probably the most important factor when trying to attain a comfortable feel and the utmost accuracy from any given bow.

(That was a rant...and I apologize for it but that is my biggest pet peeve with some of the bows from the various manufacturers when considering that I have a 31 inch draw as well.)

However, I have come to adapt my shooting style in order to be able to shoot a 30 inch draw length bow. You are definitely going to have to go with a string loop to compensate somewhat....and it still won't feel exactly the same but it is better to be a tad short in draw length than a tad long when it comes to accuracy and form.

Now, taking that into consideration, I would probably suggest the Patriot SC as well. The bow has a decent brace height, awesome speed, a nice short (but not too short) axle to axle length and is very well made. If I had to pick just one bow to have then the Patriot SC would be my choice.

....something that MrFritz summarized very nicely