OK guys, the OP did not ask for a debate over the various features of both designs. While I concede such a debate is probably inevitable any time those two are mentioned in the same sentence, I would remind you that he just wanted recommendations on which version of each to get.
For the AK, I would recommend this one from Atlantic:
http://www.atlanticfirearms.com/storeproduct1018.aspx
And then convert it back to traditional AK configuration yourself, following the many instructions for this online. This one is nice because it is already converted to AK-style handguards, front sight, and threaded barrel... the welded-on muzzle nut is designed to break off for conversion. So for the price of the rifle plus the conversion parts and a little sweat equity, you have a real Russian AK made at the same factory that makes the current military ones.
For the AR, I would scour the net and find the best deal possible on a lower receiver, and then complete it with a lower build kit and upper receiver group from Palmetto State Armory:
http://palmettostatearmory.com/index.php/ar-15-05/lower-parts/build-kits.html http://palmettostatearmory.com/index.php/ar-15-05/complete-uppers.html
IMO they are currently the best deal going on reliable, high QC, mil-spec ARs that would be suitable for HD and other serious use.
Doing the pistol grip conversion on the AK and putting together your own lower on the AR is a great way to become more familiar with the workings of both rifles, and both projects are suitable for a novice.
Or if you are more lazy, you might look at this AK
http://www.atlanticfirearms.com/storeproduct1028.aspx and a complete AR from either Palmetto State or Smith & Wesson.