I am 176cm (5'9) and I used to actually like short guys as I found them cuter, but I've changed my preferences. While it's still in no way a main factor, I do find it much more comfortable to hang around taller guys, especially when I'm on heels. It's just not as comfortable to walk around together with a shorter guy, as with someone taller. Last time I was with someone taller than me, we discovered we were the absolute perfect match in heights and it made our romantic walks very cozy:) I could wrap my hands around his waist and put my head on his shoulder, while he had his arm around my shoulder and we could walk around like that, this kind of harmony could never be achieved with a shorter guy:) So basically, idc about the heights as a physical quality of a guy as such, but I do prefer him to be taller than me for the convenience:)