re: Poker & Tourny vs Ring, which has better skill?
I'd say similar skill, but different skills.
Tourney players need to be able to quickly figure the blind pushing ranges in the shortstack stages, and basically be right more on reads. One bad bluff late and you bust early it costs a ton of money. One bad bluff in a ring game is just what you bet.
Ring players need to be able to play well in postflop situations, deal with light 3 and 4-bets, 5-betting thin, calling 5-bets thin and just in general have a much greater amount of weapons in their arsenal.
Tourney players need to have the mental toughness to withstand long periods of not cashing and just being way below expectation.
Probably some things I'm missing, but I'd also say that perhaps a deepstacked slow-blind tournament has more skill involved than a ring game, not positive about it though. It has similar dynamics of a ring game, but you have to factor in the difference between chipev and $ev, with payout structure and such. But a normal tourney where you have 30-50 blinds at most times, I think the postflop strategy/skill in a ring game is greater, while the skill in a normal tourney is reacting to blind structure/payout structure, and in addition adjusting to how other people feel about the structure as well (ie attacking weak players on the bubble, etc.).
Not really that great/experienced with tourneys so can't guarantee I'm 100% right here but I'm pretty sure this is all accurate.