I have an ABM500 plus 1x15 and 2x10 Cabs and was satisfied with the sound, mind you I am also `old school'. I have recently bought an EBS TD650 and Ampeg 4 x 10, which makes an awesome sound! However, I'm keeping the Ashdown as it also sounds great and is more portable, so I just take out what takes my fancy: EBS wins 5:1, but hey, I don't play with a rock band that often.
Oh and the Bassman you see to your left!!!!!!!!!!!!
Same with basses though; one man's meat is another man's poison!