I haven't tried too many of the others, with a geared team.

I know I like the larger 40-mans a lot more than the smaller ones.
But the dislike of the smaller ones was partially from being under geared and unable to contribute.

I do not like the vehicle battlegrounds that much.
Strand of the Ancients, as a BG, kind of sucks.
Isle of Conquest is a large scale BG, but Demolishers can take my fully geared team out in 2 seconds... and that is with 3.5k resiliency.

95% of the time I just queue AV.
I'm winning 30% during the morning through early evening.
And 60% during the later evening or graveyard.
Overall AV is close to 40% as alliance, with queues anywhere from 10 seconds to 5 minutes.