stat-wise for fury i suggest Haste > Versa > Mastery > Crit.
Strength is the best stat in all situations. Haste is the strongest secondary stat at all times due to it reducing the Global Cooldown on abilities and increasing your attack speed. Mastery (Unshackled Fury) increases all of your damage while Enrage is active. This is crucial for increasing your overall damage output.
Note: Critical Strike is important if you are using the Azerite Trait, Cold Steel, Hot Blood. This will increase your survivability. However, Critical Strike damage is reduced in PvP, so you would be losing out on damage.
for Arms, stat-wise i personally go with this mind set: Versa > Haste > Mastery > everything else.
Regarding gear and Ilvl, the best/fastest place to gear currently is M+, doing PvP and filling the conquest bar will net you 460 ilvl but does not provide the best stat combinations, although a nice place to acquire trinkets. I would however focus on M+, with a raid here and there.
Haste as fury is not that good because of your procs that you get that increase your haste. On paper it may seem really good but as a stat increases its efficiency decreases.