Does size matter?

[luteski]

The chip amp in my Altoid box may be the best in show.  Or how about
The Marshall stack with 8 speakers and 100 watts of vac tube power?
No contest.  One gives you a kiss, the other makes you deaf.
There is a time and place for both styles.
A bedroom amp can be your best friend, but if you play out and with a drummer or jam,then you need to get loud.  I like to bring a medium sized combo amp, at least 30 watts tube, or 65 watts transistor with a good 12" speaker.  And you must be able to crank it up, get a screaming feedback at earbleed volume, and be able to control that feedback from the instrument.  Then hit the pedal and take it up a bit higher.
Now you have something to work with.