I've tried virtually everything out there and they are all much of a muchness except some are more of an expensive muchness
If spending the extra will make you feel better and ride harder then why not. I've made that 'mistake' in the past and the effect wears off quite quickly. I'd recommend a wheelset with lots of spokes, should be ok with 24 front ( more if you get a really light rim) and 28/32 rear on a Stans/velocity/MavicOP/H+ rim. If you are buying with the thought of selling the wheelset at a later date then get your big name options as already suggested.