I have stalked all the bathroom threads and @PigletJohn threads and although I now have a good idea of the main considerations, I still feel at a loss when it comes to finalising my choice of bath taps and basin taps.
I know it has to be Bristan
. My ideal would be wall hanging taps with a single lever to turn the water on and regulate the temperature. I think PigletJohn calls these joystick taps and advises against them
Having separate taps isn't an option, therefore what kind of mixer taps are ok? @PigletJohn, any thoughts? If lever taps are a bad idea, do you recommend separate non-quarter turn taps with a single spout instead?
We have a gravity fed system with water tank in the loft. I can stop the water flow at the basin with my thumb (hot and cold). The flow on the bath taps is 16-17 litres a min.
In terms of the bath taps, I would ideally also like these to be wall hanging but it's not a must. I've been thinking, given that PJ always advises getting exposed showers to avoid having to break tiles to fix problems, presumably the same applies to bath taps on the wall. I've never seen a wall hanging tap that has exposed elements, so perhaps this also indicates that going for the usual bathroom tap is the way forward.
I'm not going to even touch on baths as I'm totally lost there and it's the one area I'm hoping to save a bit of money on as so far this bathroom is costing us a fortune 
For background I have a tiny bathroom and so am designing everything with the aim of maximising space, i.e. wall hanging toilet and basin, shower over bath, wall hanging heated towel rail.
Also, the current flow on my shower is an abysmal 2.3 litres/min
whereas at the bath taps it's 16-17 litres/min. Any idea why this might be and will a Bristan shower suitable for 0.1 bar fix thus for me? Say it will!
All advice gratefully received and appreciated!!