Both texture and gradation is different. I stick to (mostly) FP4+ in all sizes for that reason - it gives the tonality I want. HP5+ is an alternative in less-than-bright conditions, and I'm willing to use Delta 3200 if it's pitch dark. Otherwise it's FP4+ (as soon as I've used up some of my stock of APX 100, APX 400, EFKE R100, PanF and so on)...

I also like EFKE R25 and R50. As you can see speed is not my primary concern