You will not be able to tell the difference, no offence. Buy the one you like the looks of best. Yak is the flavor of the month. It is also the newer designed aircraft and is hard to beat, however I 3D with a 260 and a 330. Flown them all, see no reason to change at this time.

Pick a budget first. Buy the best quipment you can afford. You budget will determine the size aircraft. Depending on the size, one design may have slight advantage over another. If you have 10 grand, Comp ARF 40 all the way. See how the budget thing works?