Well if Nightcrawler gets that kind of upgrade yeah he could win. The simple truth though is Spider man should win, if the characters are at their normal levels. Nightcrawler is nowhere near as strong as Spidey. And to quote Spidey during Secrete Wars, "As agile and as quick as I am. Not on the best day of your life." Kurt can teleport which helps against almost anyone else, but Peter's spider-sense would negate that ability. Spidey wins, also I think Spidey has been in more tight spots, and he is just tougher.