I've enjoyed all the DB-related seasons I've seen, which includes all dubs(and only dubs), even the eh ones.
I'd need to see Dragon Ball GT again to form an honest, informed opinion of it. Because all I saw of it were...
early 2000s era fansubs... *shudder*
Many years ago, my sister bought a set of bootleg CDs off of Ebay which had all of Dragon Ball, Dragon Ball Z, Dragon Ball GT and the movies on them (all in Japanese, and very few of them were good quality), and this is how I watched Dragon Ball, the movies and DBGT.
*memories of Vegeta's f-bomb laden rant in Movie 13's fansub*
The final four episodes of GT weren't even subbed.
That aside, I actually own two of the Big Green dub DVDs (Lord Slug and Tree of Might).
My sister and I were among the unfortunate people who never got to see anything beyond the Trunks VS Cell fight (and even then, she missed the last episode of it) in an official capacity when it was originally airing. I think it had something to do with Cartoon Network changing how it was broadcast to the UK, meaning we lost access to it.
Oh lord, memories...
After the Trunks VS Cell fight, the only things Dragon Ball I experienced beyond that was a snippet of Gohan VS Cell (in a bar), Vegeta's Majin transformation (a clip downloaded from a site, I believe it was Pojo.com?), and the video games.
I first experienced the Buu Saga through Budokai 2 and 3 (technically also Final Bout, I guess).