Thanks for asking.
Governor O'Malley is WAY overrated by folks outside of Maryland who don't know his policies. Really a BIG take-hike guy. His Lt Governor (Brown) just didn't do anything to distinguish himself as an office-holder or a candidate -- there just was no compelling reason for people toot for him. I wonder if he felt somehow entitled because he was the Democratic candidate.
Hogan, on the other hand, ran a couple of killer ads, and seemed genuine in the process. His early ad was talking to groups of folks who said they would leave Maryland if they could, but were kind of stuck here (if that makes sense). They were talking about how they could not afford to live here, what with the high taxes and all. And Hogan talked about how disheartening it was that circumstances were such that people were wanting to leave the state (and many have already done so -- the state is losing population).
The later ad talked about the 40 or so taxes that the O'Malley administration had imposed or increased during their tenure, and it was a killer!
In Maryland we have this joke about the state: "If you can dream it, they can tax it!"
I am confident the state will be better off with Hogan as Governor (although I do not agree with him on a number of issues).
I know it may come as somewhat of a surprise, but I have NEVER been a straight-line ticket voter. I just resented all the early-on Obama-bashing before he had even taken office, which was without merit (like trying to blame him for the financial crisis, bailouts, etc, when it was ALL the previous administration). And much of this was coming from supporters of The Worst President in History, G. Bush! Like these folks had any room to talk. I was actually a Republican and a strong Reagan supporter, even the first term of the first Bush -- before the party went stark raving nuts with Rove and Jr Bush and Newt and (the jailbird) Delay and and scandals one right after the other. BTW, it was no surprise at all to many of us knowledgeable folks that almost none of the Reagan folks would have anything to do with the Bush folks. FWIW.