There are some few differences between the male rangers in Power Rangers and Super Sentai. I think these are some of them:
The most obvious might be the attractiveness of Power Rangers males over Super Sentai males. Super Sentai had some attractive males but none of them really had that much of a muscular body. Check out Cole Evans, Ryan Mitchell and Leo Colbert for example. Jason Lee Scott, well he wasn't that muscular but he counts. Ha ha. Can't comment much as a straight male! Although Tetsuji Tamayama is quite handsome, however he didn't have much of a muscular body.
Another of the obvious has to be this- most Sentai males had harder, more brutal especially when they are into out-of-suit action than just the regular civilian action scenes they do. For example, some Sentai males destroyed monsters out of suit. They also get stuck in more sticky situations and tragedies than Power Rangers' males most of the time.
Hyperactivity and impulsiveness are traits more common in Super Sentai's males than Power Rangers' males. I mean, for example Banban Akaza is way more hyperactive (and overenthusiastic) than Jack Landors was. While Jack Landors just didn't do his part in the obstacle course during his earlier stages, Banban Akaza would try to beat the others in it. Besides more Sentai red rangers suffered from that problem too. Genta Umemori is 100x more hyperactive than Gem and Gemma combined.
Not to mention, it's all about the idiotic rangers too. In Super Sentai, idiots are more common in the team than Power Rangers. Think of Skull as a Power Ranger. :-P