I've got 99 problems and a Porch is one

If you have been to our home, you have probably noticed that we tend to shy away from showing off the back of the house, most specifically, our three season porch.  The reason is that well, we dump a lot of shit back there that is garbage and it currently resembles the set of Dexter, as shown below:

It's an eyesore, and a big one at that.  The wood is rotted, the windows are broken and its completely unusable.  So now that it looks like we will be staying here a while, we are deciding to FINALLY do something about it, and remodel that bitch into a usable and organized four season porch/sun room.  We are currently getting estimates from builders and hoping it doesn't break the bank too much. After one left today, I thought to myself "self, you should probably get your ass in gear and figure out what you want this space to look like when finished."  So, I started looking online for photos.  And then I got sucked into the black hole that is the internet, and 4 hours went by and I was sitting in the dark, in my dining room, like a total creep.  There are just so many questions that we need to answer!

Do we want to use it as a dining area?

Do we want to put a tv out there (husband screams yes from the other room, and add speakers too)?

Do we want windows all the way around?

Would a window seat look stupid?

Can we do built ins?  Is there a point?

Do we have any mac and cheese?  Sorry, got side tracked

You get the gist of it.  So below are some photos that will hopefully inspire me to do something and kick my brain into gear:

Anyone have any advice?  We need some serious help over here and I dont think a bottle of wine is going to do the trick.