Hundreds of hours with Skyrim, my 1st character was a fail, my 2nd character used glitches and made the game too easy and now my 3rd character who is leveling up with no exploits, a level 40 illusionist, completed the CoW and Companions guilds, and has yet to finish the MQ.
I never met up with Dalphine in Riverwood, no dragons have attacked me. I intend on finishing the MQ eventually but am having more fun with no annoying dragons swarming at the worst possible time. And honestly, the guilds and side quests seem more interesting then the MQ.