There is no "hard" or "easy" paphs to grow
Are you serious?
I might not be the most experienced grower (in fact I know I am far from it), but I can assure you that there are easy and there are hard paphs to grow. An easy rule of thumb is to check the species distribution. If the species is widespread in natural distribution, chances are it is an easy grower. Species with a very isolated and restricted distribution tend to be harder. I know it is not a fixed rule, but logic dictates that if a species has a wide distribution, it can grow under a variety of conditions, while if it has a very limited footprint, chances are there is something very very specific about its cultural requirements.
So phili has a broad distribution and I think most growers would agree that it seems to be easy. I accept that you don't like phili, but it offers ease of culture to its progeny and that is hard to beat. Stonei is also quite widespread and although I don't find it easy, I do find the hybrids 'easier'. I prefer Lady Roths to Lady Issabel, also easier to bloom (but that is possibly because I find roths very easy in my conditions)
Multis crossed by cochlos tend to be easy to grow and flower.
I personally would stay away from multi x brachy or parvi. They seem to grow easy, but are difficult to bloom, and even more difficult to bloom well.
(Blooming well is another factor to consider!)
I find bel Royal very easy, but it is a monster plant.
Another route is 'maudiae' type x multi. Easy to grow, but some are awesome while others are dogs,