[Siri]

hmmm....
"FLOW-ER POW-ER"
*clap* *clap* *clap clap clap* *clap clap clap clap* "GO MOE!"
"ROLL-ING THUNDER"

So, Miss Daisy, MOE, and Rolling Thunder in addition to Exploding Bacon and WildStang. ThunderChickens, Hawaiian Kids, and Killer Bees, too.

I think "recognizable" to me usually means a very distinctive uniform--that hopefully carries into the robot and pit--and an awesome shout-out. 1511's red-white-black cameo, MOE's neon green, WildStang's tie-dye, and the Hawaiian kids (take a wild guess) especially excel at the former.

You've got to have a reason to be remembered, though. Case in point, I also never fail to recognize RoboWranglers, Simbotics, OP, or HOT. This is less about branding and more about being ridiculously awesome. (Their branding is good too, but nothing really compares to performance.) Locally, 433, 1647, and 103 stick in my mind for similar reasons.