Computer Science/Engineering Major ; 13" or 15" ?

[Sifinity]

I'm in the same position, coming from a 2011 13" MBA, so I'm leaning towards the 13" rMBP. I think I would notice the difference in portability of the 15". But still can't decide...

The 13" will have more than enough power for Comp Sci, I ran Xcode, Adobe CS, Visual Studio 2013 in a Windows 8.1 VM on my MBA without any stuttering at all. That was just with 4GB RAM and an old Sandy Bridge i5. I'll be getting the top 13" or the top 15" I'd imagine.

Does anybody have any experience on coding on the 13" rMBP? If so is it usable? It'll be hooked up to a Thunderbolt display when it's at home, but what's it like on the road?

im like 100% sure you could code on a 13" lol ; now the question is do i want to wait till fall or Q1 2015 for a new model or just get the late 2013 version