In this order:
Ehx White Finger Compressor: considering selling it; I think an MXR Super Comp might suit me better for slapping. Also frees up a spot on my power strip if I do.
Voodoo Labs Sparkle Drive: adds... sparkle (duh), gives it that little bit of grit that I like
Boss PH-3: phaser, I don't set it to be very deep though. But when used with the other gain stages can make the bass chug very well

might take this out. Cutting down my board...
Boss OD-3: prefer this to the ODB-3... more natural, even response and smoother gain structure. No buzzsaw-like OD when you keep the tone knob below 12o'clock for bass. But I'm selling this and getting myself a Randolfed Keeleyfied Boss BD-2. More news as that comes!
Sansamp Bass Driver DI: Overall EQ/additional grit section. Helps to restore some of the lows that the OD-3 can take away, very good at what it does but I'm swapping it out for an Aguilar DB924 outboard preamp when I get a replacement bass in.
Line 6 Echo Park: Add the chugga+phaser to this and you get a very big sound!
Of course none of this matters if you're playing at Baybeats because it's almost as if the FOH engineer had a low-pass filter just after the C; everything else didn't seem as huge. Oh well :/