One thing I've found with editing wedding photos is it's all about finding that balance. You want your whites to be clean so WB needs to be spot on, You want to photo to pop so contrast needs to be good, but not too high; make sure you aren't blowing out highlights or blocking up shadow detail. Skin tones need to be soft and flattering, but not fake, and sharpness needs to be there to highlight detail in the dress and whatnot, but not be too much as to take away from the viewing experience. I try to avoid things like using vignettes a lot. Color accuracy is also important. Having said that, after going through the weddings I shot before going to MIAD, HOLY cow do they need some reworking! Hahah, self teaching moment.