don't know much about the dc universe as a whole, only really reading gl stuff. the marvel universe if full of telepaths, how many telepaths does the dc universe have? i think telepaths would really give them trouble. also not sure they can handle the universes super powers that are out there. like the shi'ar, kree, skrull, galactus, the celestials, negative zone, and so on.
DC Universe is more diverse than Marvel Universe (IMO.)
Let's see...
Marvel--------------------------DC
Galactus------------------------Anti Monitor
The Celestials-------------------New Gods
Negative Zone------------------Anti matter Universe
Skrull---------------------------Rann
Kree----------------------------Thanagerians
Shiar---------------------------Daxamites
--------------------------------Krona
--------------------------------Darkseid
-------------------------------Minions of Apokolips
-------------------------------Qwardian Weaponers
-------------------------------Mongul.
more Planets are Kroguar, Ysmault, Zamaron, Odym, Ryut., Okaara and so on.
DC Universe Telepaths: martian Manhunter and White Martians, Dr. Fate, Gorilla Grodd, Maxwell Lord, Strarro, Sandman, Raven, Morgaine le Fey .