I got a
Roc-N-Soc hydraulic throne (tractor seat) last year for Christmas, and it has been like night and day (replaced a
Pearl Roadster that had broken down after about 5 years). They ain't cheap; I think mine was in the $150 range, but so are all the other good ones, for the most part. But, to me, reliability and comfort is huge.
Mine gives just a little bit when I move, so if I have my arse even just a bit off the seat, when it comes back down it doesn't just smack me... the throne gives (hydraulics) like a shock absorber. Couple that with the fact that the legs are double-braced, and you shouldn't be doing too much damage regardless of weight.
I myself am pretty tall (6'3" / ~1.9m) and this throne goes all the way up to 29" (~74cm), which is higher than anything I'd ever previously had. I'm all-legs, so that extra height has allowed me not to have to set my drum heights at crazy settings, and it has made my footwork better overall.
I have something like this one:

(You can see a shot of mine in the kit library, too, from overhead/behind.)