I have seen Robson a fair bit - Mainly because I teach a lad in the Middlesex setup and he has got me my fair share of tickets - Decent, but I am not saying he should be in the test side, just giving a comparison with Chopra. I will say there is a young Zim lad there called Ryan Higgins @ Middlesex (VERY much like Gary Balance) who will play for the England 1-day/T20 setup sooner or later.
But admittedly Malan, Morgan and Neil Dexter are very useful country cricketers BUT Test level is a whole different kettle of fish - None of them good enough in my opinion.
For the players with the ability to play test, your face needs to fit and be lucky with the obvious element of 'dead mans boots' about the whole selection policy. The tagline seems to be "Its yours till you play your way out of it". Great for continuity but I fear the policy has also made a few players a bit lazy.
Personally, James Taylor has paid his dues and deserves a run. I think Stuart Meaker and Tymal Mills need to be looked at as our version of 'Mitch'. Both are very quick bowlers but both need experience of being in, and around, the England set up. Until then, Finn and Rankin are there. However, in English conditions - Anderson, Broad, Bresnan are still your main three and will remain to be so over the next 12 months.