Lol, cant believe I have to defend MF Doom hehe,
Well besides the album that is currently being rolled out now(The Missing Notebook Rhymes)
He has released 1.Keys to the Kuff( Which I think is fucking amazing) 2. Bookhead EP( which has Thom Yorke, BBNG, Beck, Damon Albarn, Clams Casino remixes of KttK) 3.NehruvianDoom (Average), The fan made 4.SadeVillian( Really good ), a live album and as you mentioned a couple verses.
As far as Andre 3000 goes, I hold him in his position because of his previous content along with every verse he has put out in the 2010’s (which have been worth mentioning) to me ^^:
Solo(Reprise), Pink Matter, The Ends, Hello, By Design, The Guide, The Real Her, Kids.
Those verses alone show he has been honing his skill, and in what regard other rappers hold him and as I said if he were to release an album, RIP (Unlike say Nas who hasnt been active at all, or Jay who hasnt retained his level)
Definitely better than say Das Racist, like cmon son what has Heems released since 2011 worth mentioning?
Soz, forgot to do the reply thing ^^ a bit new to this section of the site.