I was looking into various eq pedals a while ago to shape my low end and combat room nodes/resonances etc.
I had a couple of boss style graphic eq which are great as a quick stomp tone shaper, but not enough if you want to really get into the details of your tone and sculpting it. A parametric in these cases is much better as you can hone in on troublesome frequencies and notch them out, or conversely find weak frequencies and give them a little boost.
After looking at the empress, WMD and countless other parametrics I ended up getting the inexpensive Zoom MS-60b. Sure it's a digital multi unit, but this thing packs more eq option than you'll ever need. You have your standard 7 band boss style eq model for quickly shaping your tone, plus a 2 band parametric eq for honing in on specific frequencies (it's quite nice that the screen displays the frequency you're effecting, something most parametric eq pedals don't do).
Of particular note is a preamp model in the Zoom called AcBsPre, which is modelled after the Fishman bass platinum eq. The combines a 5 band bass specific eq, with one of the band being parametric, with a HPF (high pass filter). This lets you roll of the very lowest of the lows allowing you to have a fat low end but without the boom. There's various devices that do this, as can be wonderful when needed, so IMO this is one the Zoom's best kept secrets.
So one pedal with 3 completely different eq options. Certainly the best 90 quid I've spent in quite a while!
Attitude II SFG; RBX-JM2; Att Std; Thumb 5 BO; Corvette Std fretless; LMII; MB 121H; Nova Dynamics; EBS Billy Sheehan; BEQ(x2); Mooer ABY; LS2; Mooer FOG; MS-60B; PT Jnr.