Posted: 15/08/2015 at 15:56
For me it has to be the holly - but you'll need to clip it and start making it a formal shape, then it will look fabulous.
My reasoning is:
I know that holly can be clipped and kept to a size that will suit that pot.
If we don't know what type the pine is, it might not be happy being kept closely confined.
That's my thought anyway
Oh, and yes, JI No 3 loam based compost