Well,i created a whole thread a couple weeks ago for about the same components and all who answered told me that Intel Core i5-4460 is better than FX-8350 and R9 280 despite R9 280X.
P.S.If you buy Intel Core i5-4460 buy a Z97 mobo
the z97 board will permit you to overclock and give you the choice for upgrading up to i7 4790k in the futur
this board will last forever
Simply not cost effective to get a z97 in this build. I don't think it's needed
I really would recommend a H97 board though, Z97 is unnecessary but H97 can be really useful. The build quality of the ASRock H97 Pro4 for example is better aswell.