I left the question somewhat open to interpretation, so you can vote based on best visuals, best empathogenic effects, etc.  I understand this is a selective traffic forum, so not everybody has done any of these.  You may use someone else's recommendation to vote, say a friend has tried a few of these substances.  You may use his experiences to vote.  Each person has three votes, this is so we can have a decent fill on the board, also, you may change your vote at any point if you experience one of the others and have a different opinion.

I do have ulterior motives with this poll, which should be obvious now that you know so .

If you are voting and can recall an experience fairly well, please describe the types of visuals, and avoid using phrases such as "enhancement of colors" or "visual distortion" unless you follow those up with a description.  Reporting of dosage would also be nice, but not necessary.
Enjoy

MMDA sounds amazing and rarely makes the rounds.  Supply/demand warrants its existence.   

Those compounds aren't really comparable for value judgments.  They all do different things. 

I've done everything on the list but: tma and mmda.  Mescaline is the best all around, most euphoric phen psychedelic I've ever done (not counting pure empathogens).  Warm flowing visuals that personify inanimate objects into spiritually significant fixtures of consciousness.  I found this effect to be unique to mescaline in the phen family.  My doses were 300-375 synthetic, and 400-450 extracted sulfate salt.   

DOM is the best out of the DOX series I've tried, DOI, DOC, DOM.  Used twice at 6mg.  Overwhelmingly detailed CEV propelled by a dissociative quality similar to 2c-e.

Wasn't much impressed by MDE, too subtle, little euphoria relative to MDA.  TMA has received mixed reviews.

My vote would be mescaline but as a consumer of strange substances I would be much more excited about mmda!