well, min/maxing will always be possible but not necessary. i myself min/maxed as much as i could in this beta weekend. there's alot of options for mixing and matching gear for the bonuses or appearance that you like due to stats being character based and not as largely gear based.
for example, in WoW you have a dps warrior stacking STR gear and you need 3000 worth of STR gear and STR gems and such to perform your best, in GW and GW2 you have your maxed out stat value just from your character being max level and spending attributes points properly. the gear will add some attribute, but a smaller amount, and it would compliment your skills. say you are a sword warrior focusing on bleed damage, you can have item upgrades that lengthen bleed duration on foes or increase condition damage.