Colossus routinely fights people out of Titania's weight class and either wins or does well against people outside of his weight class. She could put up a good fight but I doubt she wins any.
Never let anyone else define you. Don't be a jerk just to be a jerk, but if you are expressing your true inner feelings and beliefs, or at least trying to express that inner child, and everyone gets pissed off about it, never NEVER apologize for it. Let them think what they want, let them define you in their narrow little minds while they suppress every last piece of them just to keep a friend that never liked them for themselves in the first place.
She has a few. The ones that I can think of off the top of my head was when she was easily lifting weights that the Thing uses to train with and that time she lifted that huge boulder and flung it hundreds of feet during Secret Wars I.
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
You know, I think Colossus wins but not just for the reason I originally listed. Like you said, Colossus has taken it to She-Hulk and came out looking like the winner. She-Hulk has chumped Titania every single time they fought (except the first time but She-Hulk had just got through fighting the Wrecking Crew).
Colossus 10/10.
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..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.