For me the I-spin is one of the moves I dislike in figure skating. It is not pretty; it's almost impossible to perform it with a straight back, and I blame Sasha Cohen for bringing it into FS.
There are a few others that I don't care for. Hydroblading, for one. It's not a bad move, but often it does not seem to have a purpose.
I am so glad that we don't have to watch the COP spiral sequence anymore. The spiral is one of the prettiest moves in FS, but under the COP skaters were doing variations of the spiral that were not done well, and had nothing to do with musical expression.
Lately the catch foot position has started bothering me, especially in the lifts and spirals. I would much rather see a skater display the ability to stretch and hold the position. A catchfoot seems like a cop out at times.
Also Besti squats, upside down split are not pretty positions. They show the skater's flexibility, but that's all.
Finally, I like the Biellman spin only if it is done well. Otherwise it becomes one of the moves I have grown to dislike, but then that could apply to any move that is not done well.