The Bowser from the first paper mario. Evil and mostly serious or The Bowser from TTYD. Comical while still trying to ruin mario's plans.
I personally would want a mixture. The comical part from Bowser in TTYD is just how Bowser should be. He does what he wants when he wants and he doesn't give a crap about anyone else. Yet I would like him to play a a more important roll in the plot. Possible party member maybe idk.
True PM had plenty of funny Bowser minions. However i think it is likely to be a combination We know that in SPM they had a funny (though not quite as funny as TTYD) Bowser and we also know that Bowser is at least the semi main villain. And by semi main I'm referring to enemies like Count Bleck or Grodus who are followed by a different final boss.
I liked his role in TTYD a lot, however he was a really easy boss. I think, him being the main enemy of Mario, he should be a difficult boss but keep his comical scenes that you control him in. I liked playing as him a lot, it was a good change.
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