I disagree...
- Damage of s/s and bow are about the same; spear is about 10% higher.
- Protection of s/s is better, with shield block, extra defence and an extra item to put int/str/etc. on.
- Skills of s/s are very nice, with great status effects. Unfortunately, if you're facing a cleric, none of them will get through.
- s/s gets knock down/stab.
- Spear and bow get knock back, with KB from a bow being very effective.
For s/s or spear, I'd probably go full int these days.
For bow, many builds could work. Full STR is most common, but would nuke quite poorly. Same goes for the 70/70 builds. Full INT may be a tad too vulnerable, though that KB works wonders (but then you're not nuking).
It's basically up to your playing style: turtle, glass-cannon or sniper.