I for one actually like Dynamic Queue
I prefer to play with friends in this game, and especially in ranked. And here's why
When I play with 1, 2 or 3 friends, gone are the "Will the SoloQ gods fuck me this game??" questions that happen everytime you hit accept to enter champ select. You also get to choose what role you want to play in; for instance I really only play top/jg/support. In old soloQ, i might be made to play mid or ADC. I'm a terrible ADC.
Also, rage is almost non-existent. Even when my team has 1-2 people playing poorly, no one says anything. They are either my friends and I understand what they are doing or what they have done to get themselves into that position, or they are a random, but me and my teammates don't rage at them. We just adjust our strategy based on what they are doing, aka feeding/split-pushing/diving etc.
I really don't want to go back to SoloQ, where I constantly have to worry about 3-4 people having the skill to play the game at that elo, or whether they got a champ that they could actually play. And I really don't miss reading rage rants nearly every game when someone dies early and the "GG"s and blame start to fill chat.
I don't miss SoloQ at all