This game is cute, funny and weird all in the right ways, and the MC being kind of an idiot made it really easy for me to self-insert. To answer your questions :
1) Al might be my favorite, even though I really loved Zeke too (such a cutie !). I think they're my favorites because I like the idea of someone being whipped for me, even if (in Al's case) they're reluctant to admit it. To be honest, the reluctance makes it even more endearing.
2) Everytime Al was "tsundere-ing". He's all cute and blushy and I love him.
3) I would love a full length version of this.
To summarize, it was a great little game, sorry for the long review!