Joe doesn't impress me that much. He is nowhere near as big as Umaga, and he doesn't carry his weight well like Umaga does. In fact, he just looks sloppy and fat. The muscle buster is pretty weak, but then again, so is the Somoan thumb jab crap Spike, so that is pretty much a wash.
How is he nowhere near as big as Umaga? I guarantee if you put them side by side they'd be almost the exact same height and size. Exaggeration isn't a good thing, my friend. Joe carries his weight just as good as Umaga, they're both fat and out of shape looking men.. and Umaga can move rather agile and fast for his size, but so can Joe. Anyone saying Joe can't move like Umaga hasn't even watched Samoa Joe.. the man's as quick as a cruiserweight.
I think the Samoan Spike fits Umaga perfectly and is a great finisher for him, as it works entirely well with his gimmick. How is the Muscle buster weak? Let someone pick you up, contorted like a box, on their shoulders.. run across the ring and drop you on your head and shoulders and see if you say the moves weak. It certainly looks much better then a lot of finishers in TNA or WWE; and the combination of the muscle buster and the choke hold works perfectly and I think the choke hold is a great finisher for Samoa Joe because it compliments his character. That's what makes a finisher good for a wrestler, and both Umaga and Joe have good finishers, while other people have bad and unmemoriable ones because their finishers don't compliment their character/gimmick and mean nothing.