Most people say "omg go blade or glaive, you noob" because they haven't seen a good bower in action =]
For some reason, I see bows trying to tank glaivers and bladers by standing right next to them. That's giving them the advantage; that's not what we're made for. We're made to run away like little sissies and snipe! It's true, and be proud of it xD
At level 35 with an SOS bow, I one hit KO nukers with a simple level 1 Strong Bow and do decently well against other STR builds. I even killed a level 36 blader that had SOM weapon + shield o_O
But every time I stand next to a blader or glaiver, they own me. Bladers continuously knock me down and stab me to hell. Glaivers stun and use ghostspear, and their crits do huge damage.
The point is, when they begin to attack, you need to keep a distance and utilize your range advantage. Ghostwalk and use anti devil > arrow combo > berserker arrow (if needed). Once you get Anti Devil Steel, then use Anti Devil Steel > Anti Devil Wave. If both critical, use four arrow combo and berserker arrow. Then, your attacks should have done massive damage. If not, ghostwalk away and repeat forever until the other person dies or gets pissed off. ^_^ If they say, "COME BACK HERE YOU *****!!!11!" Then, you know you have achieved your goal.
If they run out of pills or are not immune to ice, Frost Nova can save your life. Use Frost Nova and ghostwalk away to shoot. If you're lucky, it can freeze them for around 3 - 5 seconds, which is more than enough time to deal a ton of damage. Even if they use pills, ice will still be hella annoying because freeze takes a second or two to pill off.
Nukers are a bit easier. Just attack them before they attack you, since most Pure STR builds can tank 4 - 5 nukes before dying. A crit from Anti Devil or Strong Bow + Arrow combo drops most people.
It's rare to fight another bowman, but the only thing you can do is tank it out. If you can shoot them, they can shoot you, so the stronger one will win. (I learned from watching some high levels PVPing in Hotan, it was pretty cool

)