The Fender noiseless pickups are basically single-coil sized humbuckers with side-by-side coils. The "vintage" set required using a specific set of pots which Fender hoped would allow the treble output to be something like the vintage single-coils. It wasn't. Tried a set and hated them. The distinctive Strat bell-like quality was missing and they just didn't sound like a Strat.
The later Fender noiseless sets are better, but again don't really have the vintage Strat sound and feel, especially when played clean.
The best quiet (not noiseless, but very quiet) Strat pickups for my purposes and taste are the Lace hot gold set. Single coils, only very quiet with a hotter bridge pickup which makes the bridge p/u usable on its own because the usual volume drop is gone and the tone's less brittle. The standard Lace gold set are the same, but with a vintage output bridge pickup. Good blues/surf/Hendrix sound and feel. Some people reckon they're "characterless" but I can't say I've noticed. Good for driving effects as well.
The Kinman silent Strat pickups are considered good by lots of people, but they aren't cheap.
As for Gibson P100s, everyone but everyone hated them because....reasons. Well, everyone but me, my mark 1 ES135 has them. They're a stacked humbucker with shallow wide coils. They are a bit like a low-output P90 with a big dose of the vintage low output Firebird mini-bucker. A bit low in output terms, but as for tone lots of people tell me that guitar sounds really good because "you can't beat good old P90s" <shrug>.
Gibson dropped P100s from their product line in the late 90s, you can't even get them as OEM replacement spares. The mark2 ES135 was given the Gibson standard-issue humbuckers.
Noise gates are an option to reduce hum, but they work by shutting down the signal completely so if the hum is present while notes trail off you either have to live with that level of hum and only kill it in the silences or greatly reduce the sustain available from the guitar.
About the best I've found is the Boss NS pedal. There are critical reviews around the web but often from people who aren't using it properly or tried it for 5 minutes in a shop. It works by the guitar being plugged into the detector circuit then pedals, especially noisy pedals, go in a loop. You set the gate up based on the guitar's sound and output, the loop only opening when the guitar signal is high enough to open the gate. Because you're gating the noise at source from the guitar rather than trying to gate the noise from noisy pedals then lose clean sustain, the gate can be held open longer and you're preventing noise between notes getting into the pedals. The only thing to watch is compressors might need to go before the gate if used for sustain and delay and reverb need to be after the pedal or they'll be silenced as the gate closes.