Personally I enjoy support. Compared to ADC and many top lane match ups it can be a lot more interesting early game than sniping down as many minions as possible.
It's a flexible role that allows you to bring a variety of skills / utility in to help complement your team, and you have a lot of in game decision making in terms of when and how to roam, ward, etc.
As for dynamic queue. It's forcing everybody to place one way, where previously we had 3.
Premade groups (not talking teams) inherently destabilize gameplay, due to the increased potential disparity in skill, you now not only have to worry about individual skill but also team focus, ability, and psychology. You are making an already difficult task (accurate matchmaking) virtually impossible