power can be told by how people react when you hit them and by the quality of your knockdowns or ko's; at least in terms of sparring/fighting, when a guy w/POWER hits you he doesn't have to have perfect tech, land perfectly or even set up. He hits you and even if your guard is up or your ready for it, it still hurts you.
secondly hitting a pad or bag hard is an indicator of power; being able to use it w/in the context of a fight is different because that comes down to your tech, durability and experience. Its like saying cus guy a)is faster w/a football in his hand, that guy b)who runs a 4.4 forty is slower than him; within the context of a game, yes. But in regards to pure straight ahead speed, hell no; power is power, applying it in a fight is totally diff.
put it this way i have never seen a guy who can't hit the pads hard or hit the bag hard, all of a sudden develop real power in sparring.
tech-approach-combinations-workrate-even durabilty-accuracy MAXIMIZE your power; they don't create it where there is none, plain and simple.
and there are many instances of guys w/sharper tech and all round skills; not being able to generate as much power, in mma guy mezger-spencer fisher-sam stout-frankie edgar-kenny florian. Guys who are some of the better strikers, but guys who really don't put guys away; especially considering how cleanly and frequently they land. Then you have guys like guilliard-stephens or gom; guys w/ less than half the tech and finesse, who KILL guys every single time they touch them.
Spencer fisher hit sam stout w/every strike in the book, couldn't drop him stop him or back him off; stephens rocked him and forced the usually offensive and straight ahead stout to step back pick shots and counter.
Stout couldn't put spencer away and hermes franca; the widest and most telegraphed striker in history ICED fisher w/one big right hand, the kind they used to throw in the old westerns
frankie edgar picked griffin apart landed all sorts of combinations and shots to the body and head, wasnt close to stopping griffin; gomi hit him one clean shot and put him out.
kenny florian hits guys left and right all night, clean hard shots; kicks to the body, full power, knees and so on. Melvin guillard lands one hook or on shot to the body and guys either go out or can't get back up...
guy mezger lands a litany of strikes and can't put any guys away in mma; chuck liddel lands one loaded up wide and telegraphed hook or one straight right and ices guys...
im sure alot will disagree w/me but that is what the forum is for...