What do you ride now? What sizes are you used to? What's your ability level? Shit at 6'2", 188cm seems perfect not taking any other factors into account. I'm 6' and ride 185 and 188.
Although the shorter ski will be easier to spin, easier to turn in between tight trees (if you're east coast), smaller turn radius, and slightly lighter. The longer will be more stable on landing jumps.
Yep what the other dudes said. You're almost exactly 188cm yourself, get those unless you're not very good or only do park and strongly prefer shorter skis. E dollos are not heavy or hard to control at all so that makes this easier
I'm right between 5'11 and 6' and I had the ARVti (same ski as the edollo, but stiffer) in 178 and they were a little short for me. So I think 188 would be great for you.