If you want to scratch the valve itch go all valve , the hybrids don't do it for me although I like the m_pulse , I've got an svt cl and a peavey classic120/tb raxx , they sound great but I never take em out anymore, too heavy , I always use class D !
Btw I've never really got the warm thing , to me a good valve amp sounds glassy, open and clear and sometimes gritty,