A lot of that depends on how good of a skier you are, and if you're used to skiing on long sticks. If you're an expert skier and used to longer ski's, go for the 190s. I'm 6ft 175lbs, and I'm on a pair of 183's. I ski primarily in the east, so these only get used on days it really dumps here, and on trips out west. The first couple days I was on them they were a handful, after that I loved them. At 175lbs I had plenty of float on powder days. The Katana's are wider, and would be better on deep days. They're not as versitle as the Gotamas, which you will have no problem ripping down groomers on as well. I hope that helps, maybe someone else who's a little heavier than me can chime in. The live gear guru's could probably help you out too.