I am making my own wedding cake ( with the help of my father)
and I think it would be extra nice to save the top tier of my wedding cake for my first anniversary.
Now my question is would the top tier need to be a fruit cake (which I HATE) or is there any other acceptable cake that would be fine to freeze for a year??

Why not just bake at your 1 year? I offer this to my customers as I don't want a cake that has been in the freezer for a year. Blech!

We just defrosted a slab of my husband's birthday cake from August '10. It had been an enormous cooler of beer cake and we didn't need nearly that many servings. It was a little dry, but it had only been wrapped in foil- I was really impressed! It was the chocolate cake from The Cake Bible with ganache filling and smbc. Had I done a better job wrapping it, I think it would have been fantastic!

Fruit Cake? Yuck... Is that a tradition in the UK, to make the top out of fruitcake?
I typically make the top out of the same cake as the rest of the cake.
This is what I suggest to all my brides who want to save thier topper- proper freezing is key, although it will never be as good as it was on your wedding day.
You will have the best chance at having an edible cake a year from now do the following-
1. If it is buttercream- put in the freezer for a few hours to harden (if its fondant you can skip this step)
2. Wrap the cake in plastic wrap & then foil.
3. place the wrapped cake in the bakery box & wrap in foil or freezer paper
4. keep in a deep freeze or in the back of your freezer so it is less likely to be exposed to fluctuations in temperature.
5. When thawing you MUST remove the foil & saran wrap before thawing or your icing will stick to it.

Ditto to pinkpiggie78. I haven't done a wedding cake myself but my wilton cake instructor told us not to eat a cake after 3 months in the freezer, yuck. She says for her customers she offers to make them a replica at one year of the top tier, just save a pic of the cake. And that was my idea exactly.

I have always heard that as long as you wrap it really well and not on the cardboard round that any cake should be fine.

regardless of your opinions on freezing...it's your cake, why would you put fruit cake in it if you don't like it?

it's YOUR cake!

Thats why i am asking if it would be ok to freeze another type of cake
as I hate fruit cake and would NOT conscider using it.
I know I could easily re-bake at a year and re-emulate the top tier of the wedding cake or even the whole thing if I decide to go down the "anniversary party" route.
but the point of it is it that its a romantical whim and I thought it would be extra nice to be the top tier of the actual wedding cake.

We froze the top tier of our wedding cake for one year. It was a typically birthday cake type of cake and it tasted almost as good a year later, seriously. The cake was covered in buttercream, no fondant and what I did was put the cake in a cardboard box (cake type one) and tape and taped up all of the box seems. To try to seal in the cake. Worked great!

Thanks guys think im gonna give it a shot nothing ventured and all that