Discounting Pokemon Movies, how many if any Anime Movies have you seen? I've seen:
Akira
Steamboy
Cowboy Bebop: The Movie
The Disappearance of Haruhi Suzumiya

And The Yu-gi-oh Movie, I guess.

I've seen a few ones I couldn't remember, except for a few of the Pokémon ones and the Yu-Gi-Oh one.(I actually wanted to see it in the theaters, when I got there it was sold out, I got so sad the girl at the counter decided to give me a pack of the cards that you'd normally only get if you got a ticket! , I rented it at BlockBuster when it was out & saw it that way.)

I've seen all of the dogimon movies.

The abridged version of Yu-Gi-Oh the pyramid of light.

I've seen the first two Digimon movies and the last Yu-Gi-Oh(I didn't liked it).

I've seen the Yu-Gu-Oh! Movie: The Pyramid of Light.
Dragonball Z Movies 1-17.
That one Dragonball GT movie.
The Inuyasha movies.
The Yu Yu Hakusho movies.
The Digimon movies.
The Naruto and Naruto Shippuden movies.

I have seen a few more than that but can't remember them all.

Holy crap. There's 17 DBZ movies? I need to catch up.

I've seen most of Hayao Miyazaki's movies, except the really old ones or the newest one about the fish girl thing... a few DBZ movies... a couple Digimon movies... Cowboy Bebop movie... Blue Sub No. 6 (does that count?)... Kakurenbo (short film)... Gah. I think that's all.

Tengen Toppa Gurren Lagann: Gurren-hen
Tengen Toppa Gurren Lagann: Lagann-hen
Fullmetal Alchemist: Conquer of Shambala
A few DBZ movies
A few Pokémon movies (I regret it..)

I've seen the series, but from what I hear the Gurren Lagann movies are just retreads of the series. Are they worth it and which one is better?

Gurren-hen is mostly the same indeed, with some minor edits, but still great.
It's from the beginning 'til the defeat of the "Elite Four" (one already dead of course) of Lordgenome.

Lagann-hen is partly the same, but it has some more features.
You just have to see it.
I can't explain it x'D
I don't want to spoil it either.

Digimon Movies 1 + 4(I consider 4 the sequal b/c 2/3 are about the same as 1/4)
Yu-Gi-Oh: The Pyramid of Light
Naruto 1 + 2
Naruto Shippuden 1
Akira
Cowboy Bepop: The Movie

I don't remember the others, I will edit the post when or if they come to mind.

only 1 the Yu-Gi-Oh Movie

In order of when I saw them:

Spirited Away (I saw this when I was pretty young and damn, it scared me.)
Howl's Moving Castle (I loved this one so much; my favorite)
Laputa: Castle in the Sky (My second favorite)
Nausicaa (I hardly remember this one)
Metropolis (Saw this one very recently. Trippy art style and I liked it for the most part)

My dad rented all of them from Blockbuster or Netflix.

All Pokemon and All Naruto Movies!

I've seen most of the One Piece movie's as well as Naruto and Bleach movie's, and all of the Pokemon movie's as well.

Karas
Hellsing Ultimate
Bleach Movies 1-3, will see 4
Most DBZ movies
Spirited Away


That's about it. I prefer series to movies.