Two person Let's Play Mic recommendations

[GoliathsDownfall]

I saw Linus's cheap mic round up and I'd like to get the basic xlr set up he showed off, but my buddy and I are starting let's plays together. For a two person set up would it be better to get the two channel behringer U-phoria with two microphones OR the single channel with a decent omnidirectional microphone (maybe a shotgun mic)? We will mostly be sitting next to each other on a TV but once in awhile will be at separate desks on our PCs, which are near to each other just different walls(sounds weird but I'll add a picture so you see what I mean). Any advice or recommendations would be great ?

[TheProfessionalAmateurs]

I would recommend using 2 cardioid microphones.