I'm partly with you on that, PrettzL. It's very hard to make a game which is more focused on objectives than kills when it's competitive team based. I believe Splatoon has the most balance aspect of the kills to objectives ratio. The point system regarding it isn't the most balanced, and they still rank people on the board according to the amount of kills you got, but you only see the scoreboard once at the end anyway.
In Splatoon the objective in ranked games is mainly a variation of timed King of the Hill mode. So you only win if you do the objective. Killing does not help if you are not going to do the objective.
In the non-ranked casual games, it's like Tony Hawk's Pro Skater Graffiti mode. Your team wins if you have more things painted in the environment than the enemy. You can go solo, painting everything you you want randomly. Or you can play with the team, strategically painting areas and painting over the enemy's paint. Or, if you wish, you can go around killing the enemy to stop them from painting. Killing doesn't really help in this mode though because you respawn fast anyway. You also get way more done if you go around painting instead of killing.
Anyway, I guess I'm going off-topic. Like a lot of people, I'm excited to see how Overwatch plays out. The developers seem to know their stuff... But now to think of it, it is Blizzard so of course they know their stuff. So far most, if not all, of Blizzard's games require lots of time and effort put into it to fully learn the game mechanics. I love competitive games which have deep mechanics that take a while to learn. I mean the mechanics which look simple on the outside, but has a lot of in depth knowledge to it hidden on the inside. Like Chess. It really rewards the person who puts time into fully understanding it. Hopefully Overwatch can fulfil everyone's expectations. There's a lot of people watching it closely at the moment.