Jason Parker, on 08 October 2014 - 04:03 PM, said:
Sorry to bump this but I'd really be interested in the answer to this question. Since if that get's confirmed I will just switch on all gamemodes in no time and stay happy with the faster match search and better team balance in the solo queue.
This, from Karl Berg is the closest I can rememember ... Russ mentioned it in either an NGNG podcast or Town Hall meeting, as well (pretty sure it was the first town hall).
Ultimately, any "hard choices" will significantly affect the match maker, so, yes ... if you keep "any" selected, not only will you have a better cnance of finding a match more quickly, you will also have a better chance of getting placed in a good match.