I would not consider myself a gainer, no. That said, I wouldn’t necessarily mind being a bit heftier than I am now, but chances are that will happen naturally over time, and I’m honestly more interested, personally, in being older than anything else.
As far as pigs go–I would never be able to choose between piss pigs and chub pigs, but if I had to Sophie’s Choice it, I’d probably have to go with chub pigs.