The best tips for what? There are just no universal tips that are best for every iem. I've tried everything. While the shure olives are great for some iems and one of my favorites for a lonf time, but they are just not the best for every iem. Some iems just sound good with meelec dual-flanges, others with ety tri-flanges, sony hybrids and so on. Sooner or later one has to deal with the reality and get a decent collection of different tips.
I don't think the question is that complex. It's just a blunt question asking what tips people prefer in terms of "durability, comfort, fit and price" with the IEMs they use with