It’s important to understand these are basics and will probably not be the same for you, so please don’t fixate on these and sim your character for a way more accurate result.
Crit increases your chance to critically strike.
Versatility gives flat damage done increases and damage taken reductions.
The best way to calculate stat priorities for your character is to "sim" your characterFind out how to sim
Race differences are very small and it’s almost no difference between most of them.
For maximum DPS you should pick:
- Horde - Troll
- Alliance - Dwarf
Remember though, some racials have uses that would benefit you more. For example the Blood Elf AoE dispel (Arcane Torrent) has it’s uses, mostly in Mythic+ and Night Elf can shadowmeld. So don’t mind it too much.
Weapon - Torrent of Elements
Ring - Pact of Haste
However, it should be noted that you should sim this as well to get the most accurate results.
Gems - Quick Owlseye
Potion: Battle Potion of Intellect
Flask: Flask of the Endless Fathoms