depends on what you want if you are planning to tank instances then shield if you want to dps I recommend 3 spear / 3 fist as its easier to get and doesn't need kindred in any faction. Shield needs kindred in 1 faction I believe. If you have no plans to tank instances but only solo then I would suggest the 3 spear/ 3 fist as a tanking build is slow killing compared to a dps build and you can still tank landscape mobs in it for sure. Otherwise get both I have both and switch gear depending on whether I run as dps or as a tank.
Welleg - brandywine, Kelleg/Gelleg - Landroval
WARNING: leveling a warden may cause you to neglect your other characters.