Help! DS is a good all-rounder and should get a decent spread of grades at his GCSEs which he's taking now.
His current A level choices are:
Maths
History
Economics
Geography
but he's having major second thoughts about geography (which is now 'boring') and is considering physics instead egged on by the physics teacher who's convinced him he's a gifted physicist 
but as he's at an 11-16 school and will be going to a SFC she won't be teaching him anyway.
He appears to be better at all the sciences (predicted A*/A) than Geography (predicted B) but says he dislikes sciences and enjoys Geog more (but he dislikes them all really). there are no other realistic options for no 4.
Can't help thinking in this competitive world he should do what he'll get a better grade in - so Physics, going on what we know now, and also it fits well with Maths. But, Geog goes well with Economics. Also I hear that the jump between GCSE/A Level in sciences is more pronounced.
Things have changed so much since I was a teenager. He's indecisive and I don't know what to think. I've consulted various teachers including at his SFC but they've all said vague things like 'he should do what he enjoys'.