I like the sudden death playoffs
I didn't find the LPGA playoff on any channels I have
I don't care to wait another day for results
I'm usually busier on Mondays
I find it's boring - too long, loses excitment (especially when one takes off with a lead)
Sudden death: you still have the energy from the 18th hole finish, not a memory of it, and players have to perform immediately. There's no room for error; every shot is more critical than in any full round. It seems to be the most logical progression off of a round, too.
I suppose the other side might say it's unfair, but there is no true 'fairness' (if such a thing really existed) in any sport, much less golf. If you want to judge a player's ability to perform under pressure, immediatly, where they cannot reason away a bad shot with a half-assed disappointment, an almost mulligan mentality, sudden death style is the more obvious answer.