I'm a PC whore - plain and simple.
I currently have in inventory:
BPC - earthy and robust. NOTHING like the MC4, but both happen to be favorites.
SP Non-Plus - beany (cocoa & vanilla) with a clean tobacco flavor. Slight saltiness, but if you like MC4 - I'd give these a go.
Fonseca Cosacos (not a PC, but close) - I LOVE this cigar. I smoke more Cosacos than anything. Better with some rest on them to lose a 'raisiny' youthful flavor. Earthy, smooth, sweet tobacco bomb.
ERDM PC - yet to crack the box.
RyJ PC - yet to crack the box.
Boli No.2 Tubos - not cracking the box for at least 18 years, I bought a JUL05 box - the date my son was born. These are for him. Should be identical to the BPC.
MC4 - you already know what these are like.
Dip4 - not my favorite. Dips are supposed to be the little sister to the MC line. Although I prefer the Dip2 to the MC2, the Dip4 doesn't do it to me. I find the flavors similar, but the Dip has a funky spice mixed in with a prune/raisin flavor. Often - I hear people state they think it is a better cigar than the MC4.
PLPCs - if you can find them, buy them. An amazing PC. Sweet, caramel and vanilla. I've got 1/2 a cab left (after smoking a 1/2 cab split and then 1/2 of this cab). I wish the word had never got out. . .
I also have a number of machine bunched, hand finished in the same size including Partagas Coronas Senior and RyJ Romeo No.2. The RyJs are smoking REALLY nicely right now. Not complex, but that Cuban twang I love in a straight-forward cigar. The Partagas are still young and tannic.