I have not heard either of those amplifiers, but if the amps are in working condition, they should sound the same. Your speakers have an 87db sensitivity, which is fairly low, but they have a minimum impedence of 7-ohms which isn't too hard of a load to drive. I would say it is a toss up, but I'd get higher power amplifier.
I have heard a lot of amplifiers, and the only ones that sound different to be are tube amps. If you like a warmer sound, I would get an effects processor and warm the sound to your liking. It isn't a purist approach, but who care, it is your hobby and you can do what you want with it.

There are lots of different options to get that "warm valve" sound.