First clear is blue- gromp -red / red - blue gromp. you can do wolf and krugs too if you want to, but i would mostly focus on early ganks, since you got insane gank possibilities. after that normally do one camp and recall if i got some hp left for one.

taxing if they take kill is a good idea even tho they might get angry. also if your laner dies and you get the kill, shove as much as you can. his clear on raptor is so bad, so you need some xp elsewhere.

I will prefer AP but its hard to get back in the game if you lose early since the clear speed will be lower.

ad ezreal jungle is for first timers, after that AP is probably best since the AD build has some pretty expensive items. But to each their own, but both builds are very strong.

Big no, ezreal has soooo many possibilities for building so always change according to game. full ad? dont go trinity go iceborn gauntlet and so on. the ad build i listed is just the funniest. the ap build is pretty much what i expect to build every time tho.