Select Colossus is better in a few ways, namely proportions and sculpt, but that fuck huge Select scale was always real noticeable with him for me. His legs are as long as Wolverine is tall, just about. You can make him work and I wouldn't blame anyone for sticking with him though.
But for me, Juggernaut is really the Select to stick with. His articulation is meh but shit just look at him. Visually he's perfect.
Also I have to mention Select Sabretooth. He's big but he works for me because in the animated series he was drawn to be an absolute fucking unit. He puts the Legends options to shame IMO.
Venom is also still very good too.
Obviously articulation notwithstanding with any of these guys.