Buffalo Trace - Agree that when you can find it, its a good bourbon.
Elijah Craig - Also good and easier to find with a good price point. This is one of my go-to glass on the weekend bourbons.
Four Rose/Knob Creek - I have never been a fan. I've tried both a few times and they just don't impress me. My personal opinion but I know a few people that really love them.
Woodford Reserve - Another go-to brand for me. Easy to find and a solid bourbon.
My personal favorite - Eagle Rare 10 year. Hard to find but I always keep a couple of bottles.