Best socket 462 (A) MB are:
Stage 1 build Quality
ABIT NF7-S V2 - most stability and quality on capacitors, all Japan Rubycon capacitors, that will not blow any time soon. Best OC board as well, just need modded BIOS from DFI LanParty Ultra B
ABIT AN7 - same for NF7 V2 apply to this one as well, but not so good OC on this one, and the guru chip does not work properly
GIGABYTE 7NNXP - 80% of the quality ABIT has (not all caps are japan, the small ones are not, also 3-4 caps closest to the socket blow up easy), this board have many features, like dual BIOS, IDE RAID, secondary VRM (as far as i know that secondary VRM don`t help for OC)
GIGABYTE 7N400 Pro - same apply for that board as well, only thing is the lack of the secondary VRM, not very good OC.
MSI K7N2 Delta 2 - really depend much on every single MSI board, as i have MSI K7N2 Delta 2 ILSR rev. 1.0, that board is all with Japan caps from all good brands, but that apply only to mine board, as i have seen many MSI KN2 Delta 2 boards, and all of them are lower quality compared to mine, so no idea what is the deal with MSI, but as long as they have japan capacitors is really well build. I did have also MSI 865PE Neo2-P Platinum, well that board was with Chemicon caps, and they are lower quality compared to nichicon, panasonic, rubycon or elna, and that is Platinum, the high end that even have signature of R/D chief of MSI, but who knows..
Stage 2 Overclocking
ABIT NF7 V2/ NF7-S V2 - with modded BIOS from LanParty and, volt mod for more voltage on the memory this is the very best OC board that exist for that platform.
DFI LanParty - the best OC board out of the box, but compared to ABIT boards it lack all the stability, and lost the bios way easy. The cap on that board are mostly Chemicon KZG, they are good caps, but they hate heat, and they can pop up very easy, so not very quality one.
EPoX - 8RDA3+, 8RDA6+ Pro - that brand is known to be able to OC, not the best, but is mid range clocker brand, the quality is nothing much then ECS. I did found like x2 EPoX boards that did have a bit bigger quality then the rest, for example all connectors like memory slots, IDE, PCI, AGP all was harder to put cards, stick in there, also the most interesting thing was the SanYo quality capacitors there where 9 of them close to the socket, instead of the usual x3 only.
SOLTEK SL-NV400-L64 - similar Soltek boards was able to OC as well identical to the EPoX. The build quality is similar as Epox..
Stage 3 Visuals
SOYO SY-KT600 DRAGON Ultra Platinum - Titanium look
SOLTEK-SL 75FRN2-RL - Gold pure Gold
DFI LANPARTY ULTRA B - Racing black and green
Chaintech Zenith CT7NJS - Racing black and yellow
All of that boards are the best in their class, as ABIT in Build quality (small on visuals from the orange color), DFI in OC and visuals as the slots are UV, only in visuals Soltek and SOYO...
Mah systems retro, old, newer (Radical stuff)
W3680 4.5/ GA-x58 UD7/ R9 280x
K7 2.6/ NF7-S/ HD3850
IBM x2 P3 933/ GA-6VXD7/ Voodoo V 5.5K
Cmq P2 450/ GA-BX2000/ V2 SLI
IBM PC365
Cmq DeskPRO 486/33
IBM PS/2 Model 56
SPS IntelleXT 8088