To get the best round score I used the +2 bounce man and bought the +10% power, flight boost, and stop powerups. Use the +10% and flight on your tee off then the stop powerup just above the hole. Also if you hit a bad shot just reload the game to continue from the start of the hole.
Which is better Bullets/Rockets/Laser? If you split each weapon and use homing then the Damage per second is the important number.
All Maxed:
Rockets:
Damage = 39
Rate = 15
Count = 3
TOTAL DMG = 117
DAMAGE PER SECOND = 7.8
Bullets:
Damage = 12
Rate = 8
Count = 5
TOTAL DMG = 60
DAMAGE PER SECOND = 7.5
Laser:
Damage = 20
Rate = 9
Count = 4
TOTAL DMG = 108
DAMAGE PER SECOND = 7.2