The 6300 is actually slower in multi-threaded applications (Like video editing):http://www.anandtech.com/bench/Product/699?vs=701
The 8350 that many are suggesting is considerably stronger with multi-threaded stuff:http://www.anandtech.com/bench/Product/697?vs=701
The 6300 will probably do worse than an i5 and forever trail it in gaming. The i5 will do better at video editing than the 6300, and a gaming beast down the road if you ever add a high-end graphics card to the mix.
If you can get an 8350, it will be a stronger video editing rig than either the 6300 or the i5. (And it's not bad at gaming when you add a good GPU)