The best replacement for nightcrawler is gambit.

The best alternatives to nightcrawler are rated as following:
★★★★★  gambit
★★★★★  beast
★★★★  azazel
★★★★  toad
★★★  jean
★★★  mystique
★★  blink
★★  jean grey
★★  red wiggler
★  red worm
★  jean gray
★  jean grey ultimate alliance
★  earthworm
  quicksilver
  jean ultimate alliance

Your alternative for nightcrawler is not listed? Suggest!
Speaking about nightcrawler, one probably shouldn't forget about x men.

Other search terms related to nightcrawler and their ratings are:
★★★★★ x men
You have in mind a companion for nightcrawler and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nightcrawler in all years. Click on graph for more.
nightcrawler
gambit
beast