@Relics On behalf of heRO I think our post in this thread was sufficiently relevant and stayed on topic. Perhaps you did not see this but the starting post mentions "I sadly had to avoid heRO due to its Light/Dark and Wing System that seemed over the top." and our reply only explained those 2 features and did not digress. We're a respectful server and we don't invade topics when we have no business being there, but in this case the topic starter involved us so I feel we were justified in our reply.
In regards to Light/Dark...
Choosing Light or Dark for a player is mostly a roleplay choice, or cosmetic choice if you will, it is not invading or restricting. Players just choose which they feel more comfortable with, the gear they can obtain either with event or quest are equivalent (aka a Light gear will have a Dark counterpart with the exact same stats). They get to participate in special events including the monthly Trials of Heroes.
As a GM it allows us to pitch the two group against each others in events, including PVP of course, but also competitions to see who can gather items the fastest or kill the most monsters, climb the highest in a custom Endless Tower, rescue a npc, etc. of course we also have events that don't involve the Allegiance system at all. It's just a feature to help the server's storyline and spice things up a little.
In regards to Wings...
While I know wings have a bad reputation I think ours stand apart. The major difference is that our "wings" are actually "Winged Armor", they take the armor slot as well as the lower headgear slot. So stats that may seem over the top if it was a lower only, can be balanced if it replaces the armor. Official armors are still popular, and ever more so since the Stat Enchant npc was added (official npc). Wings are simply an alternative, situational in most cases good for certain dungeons (Elemental Wings) or to gather materials (Bee Wings), or for certain build like flee one (Avian Wings). The best judge on overpowered items is probably the WoE community. In PvM you're allowed more latitude, if you don't wear the best gear you will simply take longer to kill monsters. Very few of the top WoErs wear wings, that's probably an indicator, if it was over the top everyone would wear them all the time, to sum it up, they are good, but not the best.
I hope I've shed some light on our server features. Best of luck to you in your decision, even if you choose Destina or Talon, I simply wanted to explain our point of view. If you'd like to know more or to discuss it feel free to visit our forums or PM me. ^^