Tilemaster lightweight is my
standard wall tiling adhesive - imho there is no better grip on the market, but you need to know it cannot be adjusted after a few minutes - that's what makes it exceptional on walls, but if you don't fix accurately first time that could be a problem. I also find it has excellent coverage, as much as 8 sq m on an 8mm towelling.
For floors I tend to go for basic rsf greys. Trade Tilemaster and trade Weber is excellent value as well as more than adequate for rapid floor tiling.
When I need specialist products, I tend to go straight to Mapei (their S2 Quick is best product and excellent value), BAL for green screed (problem floors) and pourable thick bed (natural stone).
During the year I converted to BAL max fibre reinforced leveller, great product for excellent value, and I find 25 kg bags more useful.
I generally prefer to use the Tilemaster tanking kit, I prefer the rubber based solutions, and Tilemaster kits tape is excellent, includes corners, and is great price.
My standard Silicon is BAL's Micromax. I get it for an excellent price from Tileflair, it's a great product, and easily colour matches most grouts.
The truth is, I will use most adhesives, Norcross is often a "supplied" adhesive, it's great, and the grout is excellent for natural stone colour matching (who else has an alabaster coloured grout?) Topps own make is apparently made by Palace, it's fine to use in most cases, and bearing in mind how Topps load the prices of BAL adhesives, if I use Topps, I use their own brand adhesive and grout. Tried Bostik, very cheap, but needs using very quickly. Weber adhesives are all excellent but their grouts are atrocious (so much foam you need to change your water very 3 sq m).
So that's my last 12 months of tiling materials. My vote goes to Tilemaster. But there are many other excellent products out there. Much will depend on what you can buy, at what price. But for 2017, several manufacturers have hit us with 10% price increases - so my buying habits may change. Tilemaster may not make the grade if they keep increasing their prices.