Those stories are collected as X-Men: Asgardian Wars. One of my favourites, and the NM and X-Men annuals in the second half are my favourite line art ever. (I've even added the Storm bust from that story to my AF busts collection.)
You didn't make a gaffe, you said you liked an art style. That's your choice... though maybe now that you know where it came from you'll think again.
While I agree that quality can be quality regardless of style, style can be alienating - and personally, I find a lot of the favoured modern style alienating.
That said, I enjoyed Superboy #1, but so far I've only read the first issue.
~ Le Messor
"Don't worry. I'm an old hand at curing baldness."
~ Uncle Fester