Yeah, DC characters are fairly ridiculous (also remember in the last superman movie when he lifted an entire continent made of kryptonite without any problems). Don't get me started on batman and his fanboys who worship him as an undefeatable god.

That's what I like about Marvel characters. Like you said Thor doesn't seem to have a lot of battle training, which is kind of true to characters with his or similar power sets in the comics. Thor definitely is high tier when it comes to power level, but he always needs help from his human friends to win the really tough battles. Wolverine can't fight for shit in the comics, because he knows he can get stabbed and shot all he wants. This makes him - an almost literally immortal character - a lot more human.