I might be one of the very few people on this forum that own Sultans (neck & middle in an alder strat) - I find them very bright, airy, sparkly.
Also have Irish Tours (neck & middle in a korina strat) & a Trilogy (neck in a Charvel). To my ears the Irish Tours have a nice bright tone with enough "sizzle" to play with more aggressive, crunchy tones as well as cleans. The Trilogy is pretty powerful, but very clean & clear.
But I'm mostly a metal player, so singles aren't really my thing. IMO the best clean tone in existence comes from a Holy Diver neck. YMMV etc... :)