Now that I'm a drunk, I'll chime in. Bourbon is my drink of choice. Scotch is reserved for celebrations, and anyone who likes scotch that hasn't tried The Balvenie is really missing out. For the money, it's my favorite. Better than The Macallan IMO and that was my fav until I tried Balvenie.
As far as bourbon goes, Jim Beam is my go to. It's cheap, it's delicious, and it does the job. Jack is delicious and what I drink when I'm mixing. But generally, I drink Beam for sipping and shooting. Buffalo Trace is one I think I'm going to try. In fact, I may pick up a bottle tonight and try it. Knob Creek is another one I haven't tried.
When I feel like spending the money though, nothing beats Makers. Straight up on the rocks, or mixed with Coke. Never, ever shoot Makers though. It'd be a waste. It's delicious.