So for me, I’m on the giant side of things and my preference really depends on the era.
I like to fantasize a lot about being a medieval era giant and in that era, I absolutely love the idea of being able to grow myself at will. With this fantasy, I want to be able to do whatever I want with no repercussions. I want to eat any tiny I want, crush any tiny I want, destroy villages at hundreds of feet tall and trample acres of nature as I tread along. I love the idea of raiding a kingdom, claiming the queen for myself and use her as I please, only to toss her away when I’m bored.
Conversely, if it was modern era, I love the idea of being normal sized and having control over tiny women. The dollhouse idea is amazing: this high society of men having dozens upon dozens of pretty, tiny babes to use and trade around, having a grand ol time, only to “return to reality”. Modern era is where I like to fantasize a lot of more chill scenarios, like kicking back and gaming or binging tv shows while I have a tiny gal worshipping me.