[Cirno]

For me, I try to work combos as my first takedown usually gets stuffed...

Ouchi -> kouchi, tai otoshi, or uchimata; osoto -> harai or sasae are my go to combos. And if my first osoto gets blocked I can follow up with the hopping osoto.

[fil]

Football tackle...change levels and go for single/double leg takedown, drive them into the ground once you have a grip, and then shoot for side control in the transition.

I've done this easily to stronger and bigger people. Josh Barnett had a spot in The Human Weapon and he was teaching Jason Chambers and Bill Duff how to do it.
YouTube - Human Weapon MMA - Double Leg Takedown

I think pros like GSP or Hughes would stuff me or Sprawl in a cage, but it works on everyday people at the gym.

One of my coaches actually tries for wrist control and to wrap that arm across the neck. Once in side control, he's got you one handed and then rains elbows or punches to the face. Almost all of one of my high school buddies' fights ended up like this and he'd jack that other guy while on the ground with wrist control (he didn't train).

[Cmac916]

Well I just started going to grappling tournaments been sticking to low and outside singles mostly in grappling. or else I lock up and look for a throw.

[Dedicado]

Double leg. If he sprawls I hip-out and take the back or pull half guard, which puts him by an advantage, then old school him onto his back.

[endurance]

Originally Posted by TimG133

single leg

Yeah it seems to work on people of all sizes.

[Mikey Triangles]

the one Zangief does in Street Fighter 2

[Shemhazai]

I like the suplex from an armdrag. So simple (which clumsy dudes like me can appreciate), yet so effective.

[Paige]

The John Smith single.

[Masakatsu Funaki #1]

Lateral Drop

[WrestlingNerd]

Low single or if I'm tied up I go for a high crotch.