In what ways is Overwatch better or less casual than TF2? I'd generally like to know. I know a fair number of people think this, but I usually assume it is just because of hype and the money being dumped in to the competitive scene in OW currently. I personally think it has a much more casual feeling due to ultimates among other things.
Edit: I will say the experience for the general player is closer to the competitive experience in OW though which may be why some people think this. I could never really get in to TF2 6v6s because the skill ceiling was absurd in that game and I just got my ass kicked whenever I tried. I forget what site I used, but I used to play quite a lot of highlander and occasionally some 6v6s on some popular site for setting up pugs in tf2.