My 3 fave Gibsons:

1. Songwriter Series. I have one of those -- what a guitar! Created for Gibson by Ren Ferguson to compete with the Martin D-28. I've never A/B'd it against the Martin though, but even apart from that comparison it is a wonderful instrument.
2. B-25! My very first guitar in 1971, has a special place in my memory.
3. Gibson J-50! A worthy and durable Gigger that I owned through the mid-to-late 1970s.