Usually i prefer going slow and nice, unless i'm in an insane hurry to build some massive empire (that makes sense, like if i play the Timmies in 1356 on a mod like D&T or MEIOU)
I love historical expansion routes and like to make historical vassals in areas i don't want to own direcly, i also like having my vassals form something (like vassal Wallachia forming Romania)
Very rarely do i claim PUs, unless i really want the region to something, i like marrying a lot of people habsburg-style and watch as the occasional PU pops up, i also like keeping a low infamy...
So usually i like to expand slowy and on routes that make sense and i create medium-big sized vassals on their historical regions, usually no insane blobbing everywhere. In fact, i've never done a WC because i would feel bored
Even if i might want to do one for achievements once the official 5.2 patch is out.
I think my playstyle is enough to keep me entertained for some time, heh, in one of my games as Prussia on DAO even past 1700 i still had to fear France and other AI countries that were stronger than me