I believe the different variations (munetsuki, katatetori) of kaitenage are aesthetically pleasing to observe. I agree with the iriminage as well. Actually, I think many Aikido techniques are very interesting to watch. If uke and nage work together (as they should), then all Aikido technique is beautiful to watch. That's my opinion at least.
"shuchu roku" - Focus all your energy to one point