Phens definitely produce more bodyload for me, specifically nausea. However, tryptamines can sometimes produce a more bizarre and "foreign" body load that my friends and I dubbed "the tryptamine pressure" - a very uncomfortable sense that something is pressing you in from all directions. I'd take the pressure over the nausea any day, though.
specialK, i would say that tryptamines really excel in closed eye visuals, where phens can definitely put them to shame in the open eye department. tryptamines also win for auditory hallucinations for me.
I disagree here, but YMMV of course. I think
in general phens are more visual than trypts, both OEV and CEV, but for me,
especially concerning CEVs. 2c-e and DOC have given me some absolutely insanely intricate OEVs... they're always much less "organic" feeling than tryptamines (although 2c-e is a VERY awesome mix of the two - organic patterns and images like eyeballs that are digital looking) - very digital and futuristic looking in design.
As far as audio distortion goes, phens win again for me in general (except for psilocin... I really love music on psilocin), the distortion feels more warped, the sound waves look (literally!

) curved to me. Whereas, tryptamine sound distortion feels whackier and glitcher to me, skipping, doubling of sounds overlaying each other, etc... and while this can be cool, it generally makes the music less coherent, not more coherent. Psilocin is an example of this that I enjoy, however, and moxy is an exception to this tryptamine sound rule.
Typrtamines without a doubt give a much more valuable headspace than phens do, though. Even 2c-e, while it relentlessly shoves my issues in my face (something about which I am pretty ambivalent, really), is sooo easy on my mind - I honestly feel like I could take one of my college exams on a phen and be just fine. Whereas, tryptamines give you strange thought patterns, fractured ego, and creative insights. Sometimes, they end up only clouding your mind, but the potential for great learning and insight is much higher with tryptamines in general, I think... even mescaline is relatively easy on the mind.