Taken Mega Pokémon:

Gen 1: Ezekiel-Mega Beedrill, Eva-Mega Lucario, Noah-Mega Malamar, Justin-Mega Pyroar, Katie-Mega Raichu X, Tyler-Mega Heracross, Izzy-Mega Mawile, Cody-Mega Gallade, Beth-Mega Audino, Sadie-Mega Raichu Y, Courtney-Mega Camerupt, Harold-Mega Greninja, Trent-Mega Chimecho, Bridgette-Mega Blastoise, Lindsay-Mega Lopunny, DJ-Mega Kangaskhan, Geoff-Mega Swampert, Leshawna-Mega Staraptor, Duncan-Mega Scrafty, Heather-Mega Garchomp, Gwen-Mega Absol Z, Owen-Mega Victreebel, Sierra-Mega Gardevoir and Alejandro-Mega Hawlucha

Gen 2: Staci-Mega Glalie, Dakota-Mega Clefable, B-Mega Metagross, Dawn-Mega Meganium, Sam-Mega Slowbro, Brick-Mega Aggron, Anne Maria-Mega Scovillain, Mike-Mega Falinks, Jo-Mega Crabominable, Scott-Mega Sharpedo, Zoey-Mega Delphox, Lightning-Mega Manectric and Cameron-Mega Alakazam

Gen 3: Beardo-Mega Altaria, Leonard-Mega Drampa, Amy-Mega Dragalge, Rodney-Mega Excadrill, Sammy-Mega Froslass, Ella-Mega Dragonite, Topher-Mega Pidgeot, Dave-Mega Banette, Scarlett-Mega Starmie, Max-Mega Sableye, Jasmine-Mega Feraligatr, Sugar-Mega Emboar, Sky-Mega Salamence and Shawn-Mega Absol

Gen 4: Caleb-Mega Golurk, Axel-Mega Scizor, Nichelle-Mega Meowstic, Scary Girl-Mega Gengar, Damien-Mega Ampharos and MK-Mega Steelix

Characters who have not been given a Mega Pokémon yet:

Gen 4: Raj, Wayne, Ripper, Zee, Chase, Emma, Julia, Millie, Bowie and Priya

Hosts: Chris, Chef and Blaineley

Available Mega Pokémon:

Venusaur, Charizard X, Charizard Y, Pinsir, Gyarados, Aerodactyl, Houndoom, Tyranitar, Blaziken, Medicham, Abomasnow, Sceptile, Skarmory, Scolipede, Eelektross, Chandelure, Chesnaught, Barbaracle, Garchomp Z, Lucario Z, Golisopod, Glimmora, Tatsugiri and Baxcalibur

MK's Mega Evolved Pokémon is Steelix. That takes Mega Steelix off the board. Which Mega Evolved Pokémon would best suit Raj? The most upvotes wins.