Sapper requires wood (extra weight) to use skills. Wugushi requires poison pot poison items to generate poison (doesn’t have extra weight). You will be able to insert boss cards into your poison pot. Check the wugushi thread if you are interested: [Guide] Wugushi: The Venomous Tribe
All builds you listed have both archer2 (swiftstep crit rate 1.25x multiplier attribute) and wugushi poison. Poison will not crit, and high STR builds will benefit you more. Get minimal dex to get decent crit rate with equips, or no dex at all.
Archer C2 > Sapper C2 > Wugushi C3
Your strongest single target damagers will be Multishot10, Needle blow, wugong gu (situational AoE too), and gu pot (also an AoE). Broom trap spreads wugong gu poison easily, however it canNOT hit flying enemies. Your two strongest/biggest AoE skills in this build are Throw gu pot, and broom trap. These skills canNOT hit flying enemies. This would be the weakness of this build. Wugushi3 scales the best of all wugushi’s. I’d suggest 1 claymore or 0 claymore since it is a very bad animated skill. The set-up + detonate takes too long. Collar bomb has nice damage early on and falls off early, and it will miss unless you face your target at swordie melee range. Punji takes too long to set-up. You will get hit and interrupted before you finish casting, so lvl 1 is fine. Detonate traps is superb utility to destroy boss traps, and in PvP.
The skills you will use a lot are swift step, multishot, oblique, needle, wugong, gu pot, broom trap, stake stockades.
Archer C3 > Wugushi C2 > Falconner C1 > Wugushi C3
The burst AoE of this build will be Circling + multishot 15. Multishot 15 doubles as a very strong single target skill however mind the charging duration + firing animation will root you in place. Circling does not benefit your other skills at all, just multishot. Throw gu pot has an unlimited AoE so it won’t be boosted by circling. This build has the strongest burst AoE through multishot 15 + circling, and best single target damage through needle blow, wugong gu, gu pot, and Twin Arrows. Multishot 15 + circling will easily clear flying enemies when gu pot can’t hit them.
Most used skills: swift step, multishot, twin arrows, needle, wugong, gu pot, circling, CALL. Circling will grant you party support.
Archer C2 > Sapper C2 > Wugushi C2 > Falconner C1
Wugu2 will scale less (less strong) than wugu3, and will have a shorter poison duration. Shorter duration won’t be important until 200+ once mobs have more HP. This build would be a mix of your build 1 and build 2. It can deal with flying mobs through circling + multishot 10, and it has some poison, and broom trap + gu pot + wugong gu vs big grounded crowds. Its poisons won’t be as strong as wugushi3, and the burst AoE won’t be as strong as multishot 15 + circling though. The advantage of this build is its amount of AoE possibilities through circling + multishot, gu pot and wugong gu, and broom trap. Circling will grant you party support.
Most used skills: swift step, multishot, oblique, needle, wugong, gu pot, broom trap, stake stockades, circling, CALL.