Zane's so weak. I honestly cannot imagine him chasing after rebels on a hoverboard. I cannot imagine him blowing up an armory. And I really, really, can't imagine him as a Special. Seriously. I think Scott-la planned all along for Zane to just be a minor character. Zane never really proved himself to be good enough to be a Special. Didn't Cable or Shay say he had to prove himself? He created a clique. Woo. He got brain-damaged because of a pill. Yippee.
Tally, on the other hand, was a rebel from the start. She snuck to NPT, jumped off a roof, got into the wild, faced the Specials. She hoverboarded barefoot, for Pete's sake. Tally proved herself. She found the Cure, she started the mind-rain.
All Zane did was sit back and relax, expecting the "cure" from Maddy to do everything for him. Because he always was a Pretty-lazy and vain.
But that just got him killed.