I mainly use 4X12 cabinets loaded with Celestion Vintage 30's, although I prefer Celestion G12H 30 watt bass cone (55hz) speakers. But, the G12H's are fragile for bass and you can easily deform the paper voice coil formers. But, the midrange presence, thickness, and projection is pure bliss.
1) Carvin V412A 4x12 with British Celestion Vintage 30's, covered in Ozite gray/black carpet...my main cabinet from 1989, also my loudest and sweetest...and favorite!
2) Carvin PB215 2x15 cabinet with mid '90's Peavey 1502DT Black Widows...GREAT midrange bite, my first cab, my 2nd favorite
3) Peavey 810tvx 8x10 tweed cabinet with Celestion Vintage 10's, crossover bypassed (no tweeter!)
4) Marshall 1069WSP 1997 35th Anniversary Celestion Greenback loaded white/cream 4x12 cabinet
5) Marshall 1960A "Orange Crunch" 4x12 cabinet with 70's Celestion Blackback G12H 55hz 30 watters
6) Two (2) Orange PPC412 cabinets with Celestion chinese Vintage 30's
7) Orange PPC212 cabinet with Celestion chinese Vintage 30's
8) Peavey 3620 with dual 18" Black Widows and two 10" Scorpion Plus drivers...a MONSTER cab

9) Peavey 412S 4x12 cabinet, late 70's, loaded with 1201 aluminum dome Black Widows
10) Peavey 215D-BW 2x15 cabinet, loaded with 1501 aluminum dome Black Widows
11) Marshall VBC810 8x10 cabinet...stock Eminence speakers for now...
12) Marshall 1960ASL limited edition silver 4x12 cab with Celestion Heritage G12H reissue 30 watters
13) Marshall 1960BSL limited edition silver 4x12 cab with Celestion Heritage G12H reissue 30 watters
14) Carvin G412T 4x12 cab, custom made, tweed covering, stock speakers for now...
15) Carvin G412B 4x12 cab, custom made, tweed covering, stock speakers yet again for now...
16) Carvin G412T 4x12 cab, custom made, silver tolex, stock speakers for now...my "portable" cab
17) Carvin G412B 4x12 cab, custom made, "country western" paisley brown tolex...stock speakers
18) Marshall MG412A Purple limited edition mini 4x12 cabinet, purple tolex...kind of a project cabinet
19) Marshall MG412A Silver limited edition mini 4x12 cabinet, silver tolex...another project cabinet
20) Fender Bassman "large" 1969 2x15 cabinet...empty at the moment...given to me
21) Two (2) Peavey 412FC 4x12 "flight case" style cabinets with Scorpion Plus speakers
22) Two (2) Peavey 410FC 4x10 "flight case" style cabinets with Scorpion speakers
23) Two (2) Peavey 412S beat up old 4x12 cabinets with square magnet old school Eminence original silver dustcap/black dot speakers
24) Marshall 1960TV cabinet retrofitted with British Celestion Vintage 30's & wired for stereo...can't believe I forgot this one!
...and to complete the setup, I'll round everything out one day with an Orange OBC810 8x10, a Mesa Powerhouse 8x10 in purple with Celestion G10 Vintage speakers, and lastly a Fender blonde/oxblood 8x10 with both matching Super Bassman 300 and 100T heads both in blonde/oxblood.