I haven't used any yet. If/when I do, I will likely use tan as that is what Alden recommends. Also, I would prefer that my ravello LWB not get any darker, but that may not be avoidable. The brown paste wax would probably work just as well, but may aid in giving it a darker looking patina.
In any case, when using the paste wax, you're applying such a thin layer and then essentially removing most of it when buffing it out. There is very little being built up, unlike polish for calf shoes. For this reason, I prefer Alden's paste wax. With Saphir's burgundy or dark brown Cordovan cream, a layer of crap builds up on the surface and gives it a matted, unattractive look (even with an extremely thin layer). I wish I had never applied that stuff to my Cigar LWBs. I still get stuff coming off of it when I brush and buff. Seems like many here use the neutral Saphir cordovan cream. Maybe it's better.