This is my last post, so I'll try to sum up the case of mine as best as I can.
Raw power
Your point about Megan lacking "raw power" for Emma's feats would have been true if we talked about somebody of Phoenix family. Emma's feats were always due to SKILL. M'gann lacks said SKILLS and finesse - but her power reserves are not that bad, actually.
http://img34.imageshack.us/img34/8528/brightestday06026.jpg
Here Martian Manhunter himself calls M'gann "a telepath of immense strength".
http://i13.photobucket.com/albums/a299/ageofjubilee/06-1.jpg
Apparently M'gann is skilled enough in the field of psi-surgery to reverse the brainwashing of Dark Side Club on several metas (Dark Side Club captures included Zachary Zatara, a homo magi and Zatanna's cousin, and Offspring, the "next stage of Plastic Man evolution", son of the very same Plastic Man who no-sold Fernus TP).
http://i112.photobucket.com/albums/n161/EspanolBot/Comic%20scans/TERTI6-6-1.jpg
While in Dark Side Club M'gann was able to apply precognitive mind reading. So clairvoyance skills of Emma are pretty applicable.
http://s13.photobucket.com/user/ageofjubilee/media/Martian%20Scans/18.jpg.html?sort=3&o=28
Here M'gann uses this and psychic surgery mid-combat.
http://i13.photobucket.com/albums/a299/ageofjubilee/Martian%20Scans/21-1.jpg
Range feat - reading minds of Teen Titans from across the world.
Emma's victories over top tiers were never due to RAWZ POWERZ... Skill played a great role. As illustrated in this fight with Rachel Summers. Phoenix host. The powers are "off the charts". She gets her ass kicked and then accepts Emma as her teacher.
http://postimg.org/image/sc9wiaamz/
http://postimg.org/image/ikbtqdp3v/
http://postimg.org/image/b377owoyj/
http://postimg.org/image/5pr9jp9p7/
http://postimg.org/image/a4i4eidsr/
http://postimg.org/image/um7o3wfa3/
http://postimg.org/image/8cycb397f/
Rachel begs Emma to be her teacher. Later we see that some of more exotic applications of Emma's powers are in fact skills and can be taught to another telepath.
http://imageshack.us/photo/my-images/405/generationx01817nd6.jpg/
Something as exotic as this is TEACHABLE. And Monet St.Croix to whom she promises to teach this is a mid meta.
http://4.bp.blogspot.com/-xraGTiaTKKs/TbtSaQD6R9I/AAAAAAAAANk/nFmiI7HJyHY/s640/xmennewmutants24b+agexepilogue1.jpg
And "no-selling" of Legion-level illusions (YEARS of fake life, bonafide "reality warp" from the perspective of ones affected by it - including Psylocke, another "Omega Class" telepath, and Blindfold, a precog) was taught to Cuckoos as well. I think that the powerlevel of "a telepath of immense power" is slightly above the powerlevel of a single Stepford Cuckoo.
http://postimg.org/image/6mij1828r/
Teaching psionic invisibility to Rachel Summers.
Speed issue
Also note, that thinking speed of telepaths (and especially of telepathic aliens that already have superhuman reflexes
) is incredible.
http://imageshack.us/photo/my-images/149/xmen2032fs2.jpg/
The conversation takes less than a second of objective time.
And M'gann's reflexes are fast enough to do this:
http://i13.photobucket.com/albums/a299/ageofjubilee/Martian%20Scans/05-1.jpg
http://i13.photobucket.com/albums/a299/ageofjubilee/Martian%20Scans/06-2.jpg
So, a final summary of my points.
1. Emma's skills in body riding are derivative of her skills in mind control:
http://img515.imageshack.us/img515/1886/uncannyxmen314large02ow3.jpg
Emma has performed psychic surgery on member of the race which is far more alien than White Martian - a Fury, representative of the race of dimension-destroying androids.
http://imageshack.us/photo/my-images/832/astonishingxmenxenogene.jpg/
http://imageshack.us/photo/my-images/20/astonishingxmenxenogene.jpg/
http://imageshack.us/photo/my-images/132/astonishingxmenxenogene.jpg/
2. A body she is taking a ride in is powerful enough to warrant "a telepath of immense strength" from J'onn and has some neat psi-surgery feats on its own (and feats of precognitive mind-reading in combat).
3. Emma's skills are TEACHABLE and she taught Cuckoos well enough to render them immune to Legion's illusory world which was A WHOLE FAKE LIFETIME. M'gann is no J'onn (otherwise she won't be a high meta, obviously), but "a telepath of immense strength" is somebody more powerful than a single Cuckoo.
4. Still no answer to this:
http://img59.imageshack.us/img59/6397/usingpowerstostophavokspe2.jpg
Or this:
http://img393.imageshack.us/img393/5255/usingpowerstoonwaterlt6.jpg
http://img63.imageshack.us/img63/2844/usingpowerstoonwater2if8.jpg
5. Or this:
http://imageshack.us/photo/my-images/408/ef4jd3.jpg/
Since my thinking speed is better and Superman didn't want to hurt Question in their meeting...this is what will happen. Even better than my initial orgasm idea, actually.
The precognition scans are presented. And the scan of no-selling magic-amped Lady Mastermind is presented as well.
Here it is again. In case you missed it first two times..
http://s5.photobucket.com/user/CATMANEXE/media/EMMA/uxm510/uncanny510p12.jpg.html
This is my last post, and I attempted to do my best to summarize the defense of my strategy and my routes of attack\defense.
Nice match, beatboks. May the best debater win this. It was entertaining to duel you.