"Dawnbreaker" in the hands of a VR14 would be more powerful than in the hands of a lvl 30...
On my realm a lvl 25 one goes for around 7000g which makes it worth the run. BWL - 13 minutes, 150-7000g (depends mostly on that one drop) If you do decide to run BWL, do yourself a favor and look up how to kill Razorgore in advance. I strongly recommend levelling the Chromini...