3 out of 4 poll options are recommendations for intel.
That poll is biased towards AMD regardless.
If you add up the votes it's 42 to 56 in favor of AMD. The problem is, a lot of people or voting on cost, which is a factor, it is not the objective.
So in reality the poll is closer to 50/50, especially when you factor in typical AMD rabble rousing.
If you asked me AMD vs Intel, I would have said Intel. Since you gave the option for 3 Intel chips, the one you should be getting is the fourth generation for obvious reasons. Others choose to vote for 3rd gen Intel which is OK I guess, but there again they are biasing it on cost.
If you spend $200 on your current MoBo, you are committing yourself to it for a while.
New MoBos aren't that
Lets face it, the AMD is a generation or two behind Intel in performance and are priced accordingly. So spending $200 to commit yourself to your current (Read already starting to age) AM3+ MoBo is not really the best way to spend the cash.
I'm sure you aren't in that much of a panic that you need to buy that AMD CPU right now. Take the $200 and buy a decent Intel MoBo, then buy a chip at the same time or after. (I have know idea how tight you are for cash.)
Now spending 400-500 on an Intel rig will give you, and feel like much much more of an upgrade then the semi lateral AMD sidegrade.
Right now at Newegg, you can get a 4670K
, Asus Z87 MoBo
, some ram
and a shady Corsair 750 PSU
Even based on cost Intel is more then competitive.