Finally after many years of playing I will finally be getting to dragonhood soon. (Probably this weekend.) I'll probably end up going red just because it is favorite color, but I wanted other people's opinion on which color is best for hunting and which for pvp (either single combat or group), and why.
Thanks in advance!
PvP wise, Gold is #1 with the highest damage and probably the most powerful breath effect (eq loss), with Blue being a close #2 with slightly lower damage and a breath effect (shivering/frozen affliction) that synergises better with Dragon 1v1 and is better in a few other combat scenarios.
Of course any benefit of one colour over the other is still very small at best, and most of your skills as a Dragon won't be effected at all by your colour choice so if one sounds more appealing due to RP or Flavor, don't disregard it just because it isn't the min/max best.
If you are group hunting though, the best colour will be whatever gets the extra damage from the affliction boost for the second attack. Incidentally, red doesn't have a DoT, though black and green do.
https://docs.google.com/spreadsheets/d/1S5Z6xM7tj7PZDT8-MHcV0vYZtoBs8qHnUs5v1HP-XBk/edit?usp=sharing has a quick and dirty breakdown of the brage attacks.
Gold is good for PvP because psychic resist isn't as readily available, but less than the other dragons because aeon and amnesia are very pricey aff rages.
Silver and black are both nice for PvP too, because lightning and unblockable resists are also rarer, and both come with sensi for extra DPS.