Pineapple poker rules

Three hole cards; discard one before the flop, then play Hold'em.

Players

2 to 10

Betting

No limit

Betting rounds

4

How a hand of Pineapple goes

1. 1
   Preflop
   Each player gets 3 down; a betting round.
2. 2
   Discard
   Discard 1 (no replacement).
3. 3
   Flop
   Three cards on the board; a betting round.
4. 4
   Turn
   One card on the board; a betting round.
5. 5
   River
   One card on the board; a betting round.

Who wins