The "best" bow is the one that fits you perfectly.....physically, mentally, and also fits your budget and hunting needs.
Just about any bow out there will kill a deer. Don't think you have to have a top shelf bow to be able to hunt.
Having said all that........I have experience with 2 middle of the chart bows and they are both very nice. The Fred Bear TRX is a GREAT bow. I can't think of anything I didn't like about it. I owned it for one year and sold it to my brother because he was having some financial trouble. We both killed 6 ptrs with it. In 2 seasons it is 2 for 2. It is smooth, fast enough and very quiet. Great bow. I would go into the woods any day with that bow and be very happy. I replaced it with a 2003 Bowtech Patriot which is a REALLY GREAT bow......and much faster.......and much more money.......The Patriot is 0 for 1
My other brother owns a Martin Tracer Mag. He paid $300 bucks for a complete package and he shoots VERY well with it. Also a very nice bow......small and very light. I don't like the grip very much but it still a great bow for $300.
If I could give you a little advice it would be to just go shoot bows and don't look at price tags. You may be surprised at what you find. That is how I settled on my Fred Bear TRX.......It was the best felling bow to me.
Good Luck