i would go 194 if i were you.
i've never skied the 184s but I rode the 194s for a bunch of runs and they felt great, almost a little short. they have a really big rocker and are symmetrical and mounted center so they ski really short.
i'm 5'7" 155lbs by the way. but i'm also used to skiing on 191 on3p caylors and 190 moment rubys