Quick question is there that much difference between the Sonic X comic version of Robotnik and the Sonic X anime version?
I notice that alot of fans consider them to be different.
There's a
lot of difference, yes. Aside from being separate continuities, there are a lot of personality divergences between the two.
First, let's talk about what's
the same between them.
Both versions of X Eggman are incredibly over-the-top mad scientists. Both versions are, at their core, pretty good people. Both versions have a friendship with their minions, and both versions have a respectful enmity with Sonic. (Also, both versions are the best part about their respective series)
The
differences are subtle, but noteworthy:
X Anime Eggman is a villain through and through, no matter how many redeeming qualities he may have. His end goal
is world domination, and he never- even for a moment- wavers on this front.
X Comic Eggman's motivation differs from X Anime Eggman. While he does want to conquer the world, it's more like a means to an end. His
motive is not power, per se, but love and adoration. He wants to be praised, adored, revered by his public- And on several occasions he's been willing to do genuinely good deeds just to feel the rush of public approval, with no ulterior motives. El Gran Gordo started as an evil scheme, but quickly spiralled out of control, with Eggman "becoming the mask," so to speak, and embracing his heroic persona. When Sonic's about to unmask him, Eggman begs him not to, wanting fully to remain a beloved public figure. Sonic, in a moment of kindness, lets him have his wish- Though he'll be pushed back into villainy later.

In one issue, Eggman and Sonic switch brains by accident. You would
think this would lead to Eggman trying to take over the world with Sonic's powers, but he doesn't. He actually decides that- now that he's Sonic- he'll enjoy the life of fame and fun that he's always envied the hedgehog for having. He lounges around basking in the glory of Sonic's fame, and enjoys every minute of being the hero, Sonic the Hedgehog. He even tries to genuinely save the day to keep up the charade, and there's not a hint that he wanted anything else from it.

Later, when the secret organization S.O.N.I.C.X. makes Vector into a giant monster, Eggman tries to stop it in order to get the people of Station Square to praise him for his awesomeness. It doesn't work.

Point being, the anime version of Eggman may
want attention, but power
is still his primary goal and he's always been after control of the world. The comic version, by contrast, just wants to be the center of attention in whatever way he can get it- Whether that's from world domination or hiding behind the mask of a superhero persona, he doesn't care. It really makes you wonder why he never just reformed to become a hero full-time.
This is one aspect about X comic Eggman I love. He wants,
so badly, to be loved and appreciated, and he'll do whatever it takes to have that need met, and he gets a real rush from being good because- well- being good
feels good. The comic was cancelled before Ian could implement all his ideas, but another Gordo arc was among them. What could've come of it? It's not sure, but I think if any canon version of Eggman
could have feasibly reformed and straightened out his life to use his genius for good, this guy had the likeliest shot of eventually doing it.
X comic Eggman's is a complex case. I think I'll let this final excerpt from the comic speak for itself:
Edited by Dr. Mechano, 07 November 2011 - 12:22 AM.