New toons with wife

My wife made a Ninja Blade/Ninjitsu toon and looks like I will be joining the dark side with her!

I hear MM's are a bit tricky at first and in reality I love all of the sets and can not choose.

So
Ninja's would kind of be cool with her theme, but being new to the MM thing, not sure
Undead seem nice, what type of stalker would not like debuff's being tossed at our targets?
Bots, A power house, and granted while does some KB AOE is nice for large spawns (we love playing with the new sliders.

So what would you all recommend that would go with her toon, and I know it will be said go with what you like to play! But we have yet to try villians and really I think I would be happy with any of them.

Ninjas: Oh boy, gotta love the Special Ed bunch of the Primaries. The Ninjas aren't exactly as intelligent as the other pets, and are probably going to go down faster than zombies. No, actually, they will. This is made up by pairing Ninjas with either A: Force Fields, B: Dark Miasma, C: Pain Domination, and sometimes D: Storm Summoning. If you're new to Masterminds go Dark Miasma or Force Fields. Despite some of these issues Ninjas can be the most fun and aggressive Primary to play, especially when you're tossing Smoke Flash intelligently on your little warriors. Ninjas do not work quite like the other Primaries because their AoE abilities are limited at best. This is made up by some of the best Single Target DPS I've seen any of the Mastermind primaries pump out. By far Ninjas pull ahead for damage on a meaty guy. Traps is another secondary you may want to consider.

Necromancery: Ah, the zombies. Man I love these guys, but sometimes they have Ninja-like tendencies. Basically anything works with them, but once agaiN i suggest Dark Miasma or Force Fields (in this case Pain Domination is another suggestion). Necromancery is the more..."unique" primary because the Tier 3 Pet does less damage than the Tier 1 pets. Why is that? Why are your Tier 1 and Tier 2 pets the heavy hitters? Because the Lich is a frickin' beast of a debuffer. Fearsome Stare alone is worth a -30% ToHit debuff which will already have nearly floored the hitting capabillities of even conning enemies. He's got holds, immobilizes,etc. He's gonna be your debuffing and mez unit, and do not think for a second that because the Tier 3 pet does minimal damage your own damage will be gimp. Grave Knights and Zombies hit HARD, I mean really hard. Necromancery can be put in context as nearly being able to hit as hard as Ninjas. It's strange because I can't really score it that well. Genin do less than Zombies, but Ninjas have the Oni for the added damage. They do decent if not respectable AoE.

Robotics: Ah, our mechanical friends! As you've known Robots can dish out some serious AoE hurting, but AoE is not the only thing Bots are good at. They're defensive, resistable, and all around hardy making them one of the more survivable primaries. Take Force Fields, Dark Miasma, Pain Domination, Storm Summong, etc. This is probably the perfect starter Primary next to Mercenaries and Thugs. You can basically pair any secondary with it and learn how to play a Mastermind without too much annoyance. Oh, and Robotics is the perfect Primary for your Archvillain and Giant Monster needs. The Assault Bot will happily blast and blast away his negative regeneration beam. If you're feeling like following in the foot steps of some of the more established Masterminds then attempt Robotics/Traps, you won't be sorry.