I was curious as to which X-Men related characters would be in the top 150 in terms of most appearances, so made this list using Marvel Database (with a little cross referencing in Comic Vine). A few surprises for me (Cannonball's appeared more than Gambit, Apocalypse not as many times as I'd have thought, Hank edges Cyke out). I rounded up to the teen numbers (for example, Storm's had 1804 appearances, but I put 1810).
This list isn't 100% accurate - but I think it does give a very good sense of how often these characters are used by Marvel. [If we're thinking solely in terms of the X-books, in the case of Namor, Wanda, Quicksilver, Beast, and even Wolverine, it's a bit misleading, because they've had substantial appearances in Avengers books (and in Namor's case, FF and solo books too).]
Did I miss anybody? Apologies to Goldballs for not making the cut!
EDIT: My bad - I forgot Arcade, Bastion, and Shadow King! I edited the list - that pushes out Darwin, E.V.A., and Honey Badger. Please let me know if I missed anyone!
- Wolverine (3140)
- Beast (1970)
- Cyclops (1960)
- Storm (1810)
- Namor (1590)
- Iceman (1370)
- Scarlett Witch (1320)
- Colossus (1280)
- Archangel (1270)
- Professor X (1250)
- Nightcrawler (1230)
- Jean Grey (1110)
- Kitty Pryde (1100)
- Rogue (1020)
- Emma Frost (940)
- Deadpool (900)
- Quicksilver (870)
- Magneto (830)
- Psylocke (790)
- Cannonball (750)
- Gambit (730)
- Cable (690)
- Havok (610)
- Captain Britain (560)
- Sunspot (550)
- Rachel Summers (530)
- Magik (520)
- Sabertooth (510)
- Polaris (500)
- Jubilee (500)
- Wolfsbane (470)
- Bishop (460)
- X-23 (450)
- Mystique (450)
- Moonstar (420)
- Domino (420)
- Banshee (400)
- Dazzler (390)
- Warpath (380)
- Boom-Boom (350)
- Sasquatch (350)
- Northstar (340)
- Firestar (340)
- Forge (330)
- Juggernaut (330)
- Puck (330)
- Rockslide (300)
- Moira MacTaggert (290)
- Warlock (290)
- Madrox (290)
- Siryn (280)
- Strong Guy (280)
- M (270)
- Pixie (270)
- Vindicator (270)
- Rictor (260)
- Lockheed (260)
- Magma (250)
- Meggan (250)
- Anole (240)
- Auora (240)
- Val Cooper (240)
- Toad (240)
- Mastermind (240)
- Old Man Logan (240)
- Shaman (230)
- Daken (230)
- Karma (230)
- Husk (230)
- Hope Summers (220)
- Longshot (220)
- Shatterstar (220)
- Stepford Cuckoos (220)
- Blob (220)
- Gladiator (210)
- Sebastion Shaw (210)
- Chamber (210)
- Cypher (200)
- Hellion (200)
- Mr. Sinister (200)
- Sunfire (190)
- Apocalypse (190)
- X-Man (190)
- Quentin Quire (190)
- Sage (190)
- Armor (190)
- Lady Deathstrike (180)
- Guardian (180)
- Surge (170)
- Doctor Nemesis (170)
- Snowbird (160)
- Mercury (160)
- Arcade (150)
- Fantomex (150)
- Doop (140)
- Glob Herman (140)
- Dust (140)
- Marrow (140)
- Danger (140)
- Caliban (140)
- Pete Wisdom (140)
- Corsair (140)
- Hepzibah (140)
- Goblin Queen (140)
- Dark Beast (140)
- Callisto (130)
- Blink (130)
- Prodigy (130)
- Morph (120)
- Elixir (120)
- Pyro (120)
- Sauron (120)
- Talisman (120)
- Raza (120)
- Ch’od (120)
- Layla Miller (110)
- Lilandra (110)
- Avalanche (110)
- Selene (110)
- Bling! (110)
- Blindfold (110)
- Spiral (110)
- G. W. Bridge (110)
- Skin (110)
- Synch (110)
- Skids (100)
- Mojo (100)
- Destiny (100)
- Vanisher (100)
- Deathbird (100)
- Stryfe (100)
- Oracle (100)
- Donald Pierce (100)
- Bastion (100)
- Black Tom (90)
- Nocturne (90)
- Silver Samurai (90)
- Omega Red (90)
- Scalphunter (90)
- Feral (90)
- Beak (90)
- Trance (80)
- Rusty (80)
- Mimic (80)
- Gentle (80)
- Ernst (80)
- Alistair Stuart (80)
- Exodus (80)
- Cameron Hodge (80)
- Shadow King (80)
X-Men by the #s.jpgX-Men by the #s.jpg