Two different animals and it's really going to come down to which actual pce you are making reference too, pairing up with - it's just not that simple but also personal preference.
I like tube pre's paired up with solid state amps, my preference being all tube if you have the right combo and speakers.
I have owned numerous Rowland - absolutely gorgeous pces, at the same time also owned numerous ARC absolutely stunning SQ wise.
Presently have a REF6 paired up with 75SE driving Avantgarde speakers, sounds marvelous.