honestly, there r already like five other good boot threads on this forum. but ill say it again, this is not the way to look for a boot. there is no such thing as a boot that is 'good' at just park, but i know wut ur askin. just go to a local shop, sit down, get measured and let them start fitting u. try several styles(soft, hard, etc.)/brands and narrow down the boots 2 which ones FEEL the best. i mean, which boots are going to keep u warm and keep u comfortable, while also giving performance. the best park boot isnt necessarily the softest of the pack.
after uve got a list specific 2 u, then post that and ask ppl wut they think. good luck.