a kid vs a monster of a man! its a bit of a missmatch, but for the most part skill will always trump brute strenght! see gunnar nelson vs jeff monson!
In "grappling" Technique all the way. I watched a grappling match between one of the top ranked collegiate HW wrestlers and a very good purple belt. The weight difference was pretty big, 170-180 vs 265. Ended up in an armbar after a pretty long match. In wrestling conditioning is much more important than brute strength. Obviously you don't want to be a weakling either.
I wrestled in high school and its all about technique man. Strength matters only when you know how to use it. Someone who knows all the moves will beat someone who is much bigger almost everytime. An example was our 135 and 145 wrestlers were top state wrestlers and even wrestling with our avg HWY they could hold their own against him and sometimes even pin him. our HWY was about 260.
One way to look at it would be that having the technique down gives you an advantage. Having technique and superior size/strength to your opponent gives you an unfair advantage (assuming they're a novice or non-wrestler...even if they have experience in some other discipline like boxing). One of these days I'll get over my resentment toward guys who can win a fight ugly without ever needing to land a clean punch...then again, maybe not. :yep
Since most people are average, I would think technique is superior to strength as a general rule. Superior strength can make up for inferior technique is some cases, which is why I said it is a general rule and not a certainty. Wrestling is limited by a set of rules. When technique is close to being equal between two participants, strength is often the deciding factor. This is why most elite wrestlers are strong as hell.
well ok...so your saying a not strong at all BJJ kid aganst...lets say, a guy who does worlds strongest man? I would say the strong man, unless the the kid is really skilled and fast with his tecninque..like a gracie brown belt at least....i mean..its still a sport...you have to be able to "do" the moves.