If you like clean, powerful neck PU, there is a possibility: DiMarzio Super 2. Not so good for blues, and I prefer a brighter neck PU, but in high gain situation, it may be the good choice. A lot of treble (but it works in a neck PU), bass are not muddy. Why not.
For the bridge, I really don't know. Tone Zone are really middy, and extremely bassy. Lots of punch. Tapping is ok. Personaly, in a Marshall, and if you don't use a lot of FX, go with Seymour Duncan.
Another solution: try different tubes in your Marshall. I change the EL34 with Groove tubes E34LS in my JCM2000 TSL. And recently I put Ruby 12AX7C after the Groove tubes ECC83. The tone change radically (in a good way for me, maybe not for you). In France, you can ask VHM (Valve's House music, Paris). They know their job. Marshall are very sensitive to tubes.