MSR Hubba Hubba HP if carrying

or Hilleberg Nallo if not

+ 1 for Macpac tents.

If you can handle the weight I'd go for a NF Merlin 33

http://www.trailspace.com/gear/the-north-face/merlin-33/

Granted its heavy but it has extra space, and you sleep across the 2 porches so is easier for the pair of you to get out – You just swivel / roll-out without disturbing each other.

I think Coleman or Hi-Gear (Cheap I know) do similar designs, though I'm sure you can get a similar design by others. If you can get a lightweight version of a tent with this lay-out ot makes things way better IMO

Having spent 3 weeks in a tunnel tent I learnt these kind of things are important for the midnight wee.

Lightwave Trek T2 and your choice of flysheet. My 3 man weighs about 2.6kg and is not too big a pack with the XT fly.

I like my North Face Roadrunner 22. Good access with porches on both sides and decent length for me (6'6")

Terra Nova Voyager superlight for 3-season space and stability
Terra Nova Laser for up close and personal lightness

If you are tall then once you've narrowed it down your choices try and find somewhere that has the tents set up and 'try them on'. I found it difficult to find meaningful measurements and its difficult to compare between different brands on a like for like basis too. Looking closely some of them are pretty crazy. When I was looking I found one model that comes in a 2 man and a 3 man version, the 3 man version had a whole 10cm of extra width.

I've happily binned a tent rather than carry it home before now (and not because it was heavy), so a bit of travel and research finding the right one is worthwhile.

We have a Hilleberg Nallo 2. Can't fault it. Feels well made too.