I don't know if anyone had brought this up in previous threads, but it's worth mentioning. The units and abilities in Sins are almost directly parallel to those in WC3. This fact took away a lot of the novelty of the game for me. Keep in mind I've spent years playing WC3 and know everything about the game. These "coincidental" similarities were apparent to me only hours after playing. Take a look:
Scout: Peon, Peasant, Acolyte, Wisp. Used for scouting and colonizing (Vasari). Weak damage and HP. No research required for training.
Basic Assault: Grunt, Archer, Footman, Ghoul. Basic, weak fighting unit. Immediately trainable and upgradable to be moderately useful in mid-late game.
Long Range: Huntress, Rifleman, Headhunter, Crypt Fiend. Next buildable unit, requires limited research. Generally stronger than basic assult (although headhunters are quite weak in wc3). Are often massed in Sins as in wc3.
Planet Bomber: Mortar Team, Ballista, Demolisher, Meat Wagon. Used for buildings (planets). Requires limited research, (moderate research in wc3). Extremely vulnerable to all units. High food cost.
Support: Priest, Banshee, Druid of the Talon/Fairie Dragon, Witch Doctor. Weak physical attack, rarely massed, battle changing abilities. 2-3 abilities. Require moderate research to train, extensive research for max potential. Fairly vulnerable (with the exception of guardian with is the equivilent of a Spirit Breaker). Highly buff/debuff oriented. First of two utility units.
Disable/Repair: Sorceress, Shaman, Necromancer, Dryad. Again, weak physical attack (Dryad has moderate attack damage), game-breaking abilities, 2-3 abilities, buff/debuff oriented. Similar to support.
Heavy Assault: Knight, Tauren, Abomination, Druid of the Claw. Strongest unit in both games, excluding air. Not quite a necessity, but very useful in most situations. High HP and a useful spell to add to it. Extensive research required and small numbers can destroy large armies of units they are effective against. Once researched, training cost isn't THAT much higher than other units.
Capital Ships: 4 heroes per race in wc3 with 4 ablities each. One ultimate ability obtainable in level 6 (hmm)... Max ability level is level 3.
This isn't a coincidence, Sins unit structure almost undoubtedly immitates that of wc3 because, one can assume, of wc3's nearly flawless balancing scheme. Sure, there are parallels in almost all games, but this one is strikingly bold. Some units are left out and not every unit or building has a counter-part, but for those of you who get livid when reading about people trashing Sins for "stealing" their content from other games should think twice before trying to convince themselves that Sins is 100% originality.
I love the game, I love the community, and I will continue to play it for a long time to come. Flame on.