Guild Wars 2

I personally run a build with GS & Axe/Axe or GS & Rifle, swapping when 100 Blades is on cooldown.

GS : Vuln on 1 and 100 Blades
Axe MH : Strong auto attack (the third) and Burst, Vuln on 2
Axe OH : Strong AoE but big CD
Sword MH : Strong Auto attack (DoT) and a leap

Rifle Mono
Longbow Multi and strong auto-attack

5 sec out of combat first time you swap, then 0
10 sec in combat first time you swap, then 5