Me and my brother when playing Worms / Worms 2 preferred a mode without time constraints per move, and with infinite ninja rope. Apart from standard 'one shot per turn' it also allowed you to relocate to best next position, detonate some time-delayed landmines near enemy worms, and even use physics for additional damage - if you released a worm from ninja rope with some inertia/fall, not too big so you don't get damage yourself, but energetic enough to SLIDE - it could move enemy worm without ending a round! Fun to push one or two enemy soldiers into the water before your first shot!
My first real taste of programming came from trying to hack on gorilla.bas to add new features to it. Whoever created that game changed my life immeasurably.
The best matches were the ones that we only allowed grenades, bazookas, mortars and other few basic short range weapons.