I'm sure many of you expected me to say that, so I'm going to humor you and explain why I think so.
I have always liked dynamic gametypes in Halo that required more teamwork than just sitting back and shooting at people. I think Dominion ahs all the things that made Invasion fun without all of the things that turned others off to Invasion, particularly loadouts, vehicles, and one-sided objectives.
Unlike Invasion, Dominion allows you to control which weapons you use when you want to use them. Additionally, there are vehicles always present. Some of them you can only use after you control a base until fortification, but the hoggers no longer have to wait for tier 2 of a specific round to use a Warthog. Lastly, there's the two-sided nature of Dominion. You don't have an odd set of offensive and defensive weapons and vehicles. There is constant activity fighting over objectives. Additionally, everyone has a visible waypoint and isn't attached at the hip to one of their companions anymore.
I am having a blast with this gametype. There's enough BTB-esque qualities to it that I could see it being a very playable option for BTB fans when we have 6 players or less.