Yeah, to each their own. I've never felt that making a character more powerful made them more interesting. In many ways, it makes them less interesting.
Juggernaut is as strong as Hulk and even more invulnerable. I think it would have been hard to feature him as a henchman if he was that tough. Making him on par with Colossus was acceptable and the scene with Kitty demonstrated how dangerous he could be. Not every character needs to be exactly the same as the comics.
That said, why include Callisto if she has none of her comic book powers and abilities? If you want a fight with Storm and/or Wolverine she didn't need an upgrade for that. That was mildly annoying. Given how often Caliban has cropped up, he is clearly interesting enough to feature in his own right!
The CGI version of Juggernaut works great in Deadpool though.
I think Most characters should be like the comic books because that's the characters we've grown to like. I hate when the movies change almost everything about a character like they did with X3 Juggernaut. Hell, it's not even mentioned that he's Prof X's stepbrother, he walks past him and the two don't even act like they know one another.
He did some cool things in X3 but I can't get over that awful fake muscle suit and that S&M suit. He looked NOTHING like his original counterpart or anything like he had been depicted in other media. It was too much of a change. Juggernaut is one of my favorite characters of all time, so you can understand my frustration with the massive change to his looks, powers and character.
I understand what you mean about making a character more powerful doesn't make them more interesting, but I also think taking a character that is that powerful and big originally and making them smaller and weaker doesn't make them more interesting to me, it makes them less interesting. Him being depicted as powerful as Hulk is fantastic because in the comics, he's one of Hulk's major enemies and they're on par with one another. It was awesome seeing a Juggernaut that could go toe to toe with the green Goliath.
This isn't as much a case of making Juggernaut more powerful as it is making him more like his original incarnation, something most fans wanted. Fact is, X3 Juggernaut wasn't well received, Juggernaut in Deadpool 2 has been massively so. I mean, remember when we thought X3 Juggernaut was going to fight Colossus? Man, everyone I knew was massive disappointed. Deadpool 2 finally gave that to us.
Look at Colossus, they did the same too him, he's more like his original counterpart. He's Russian, much larger and his skin looks almost exactly how it's been depicted in comics. X3 Colossus doesn't talk with a Russian accent, isn't that large and his skin doesn't look like it does in the comics. That's two characters Deadpool has did right in my opinion.
So yeah, making a character more powerful doesn't exactly make them more interesting but making characters smaller, less powerful and looking nothing like their original counterparts doesn't make them more interesting either, it makes them much less in my opinion. I love the comics, I still read them to this day so I ALWAYS welcome a movie version to be just like the comic character or very close ANY day.
That all being said, I really hate X3 as a film. Man, I hated that movie.