Okay, I just beat RD on Easy (I always do things in order), which I regret because I couldn't transfer my characters, but w/e. Totally loved the storyline up until Part 4, then it just got really lame. LOVED all the plot twists, which I thankfully did not know before-hand, staying away from spoilers.

Characters I got to third-tier lvl 20:
Ike
Soren
Micaiah
Sothe
Haar
Shinon
Gatrie
Jill
Nephenee (<3 - actually, only lvl 19, but close enough)
Sanaki
Oscar
Titania
Mia
Mist (<3)

I used the Hidden Items FAQ on Serenes to get all the hidden items, but I ended up with like forty coins in my convoy at the end. :P

Had like 1 bajillion useless Master Seals/Crowns, like, wth?

I'm pretty sure I wasn't using BEXP right, but I don't know the correct way to use it...so, yeah. I just saved it all till Pt. 4 F-5, then got all my units to where I could cap them.

Don't remember my exact kills or ranks, but Soren was 1 with a close Nephenee right behind.

Wish I had known ahead of time that Tormod wasn't coming back until the end of time, because I would have totally taken his Celerity from him. And Ilyana sux, majorly. I couldn't get her to kill anything, even when she double attacked. I had to baby her so much that I finally gave up on her.

And I used Meg. DX I found out waaaay too late that she could't hit squat, so I dropped her on the river level in Pt.3.

So, how did I do? Want to know a few things before I start my normal playthrough. And, if I'm going to transfer my PoR characters, do I have to erase my FE10 Clear Data? Also, what happens when I start a new file with that Clear Data?

You can data transfer onto a clear file.

You used mostly good units. Usually Oscar is overshadowed by Titania, Jill by Haar, and I don't use Nephenee, but otherwise you used all of the good units.

I have an undying hatred for Titania because her defense sucked for me.

Play NM. Then I'll rate your playthrough. ;)
I consider all EM playthroughs to suck.

Your team looks like my first one except I didn't use Jill, Nephenee, Mia, and Mist. They got owned by Tibarn, Bastian, and Naesala. :P

Similar to my first serious playthrough. Except that I didn't use Gatrie, Titania, Jill, or Mist, and Ilyana wasn't awful.

I already knew Meg sucked, so I avoided her except in my suicide playthrough.

At any rate, I'd like to say yours went well with choice of characters. Might I ask what the final stats turned out to be?

I'd have to look at it when I'm back in my dorm room. I know that Soren capped everything but Skl and Def, and I think he was one away from capping Skl and had 21 Def. I think.

Don't remember anyone else's stats. :P