Alright, let me try again lol.
First of all have you tried either of them? I'm guessing you haven't so in that case are you more worried about the cards fanning well or is it not a big deal? Fanning isn't really Aladdin's strong suit, however they're pretty nice for flourishing/cardistry and pretty resistant to heat/warping (said above). On the other hand the bikes are pretty much good for anything.
So the reason I said I didn't like Aladdins was that my hand tend to get used to how they clump together so when I handle a different deck it seem to get all over the place, but this might just be my weird hands. Another reason, since I sweat a lot the plastic like feel to them makes them stick to my hand while flourishing, again this may just be
my hands.
Also said above, you need to make sure you
really like the back design. If you don't really like it, you will get bored of them pretty quick.
So to sum things up Aladdins if you are a flourisher, Fan backs if your a magician and (this can be argued) Fan backs if you're both. (some people recommend Aladdins for both) Also make sure about the back design. Now if you're a flourisher that likes nice fans go for the Fan backs (ironically) It all depends on what you like in a deck so if you tell us we could help you towards the right direction. So, I hope this helped in some way and more than my previous post.
P.S. If you have never used Aladdins and unsure whether you will like them, don't buy a brick to try them out buy one or two.
P.S.S. None taken
~Erick