Hi Summer!! Congrats! How fun...a wedding, I loved planning mine. Okay here's what I think (I really get into this, I know, I'm a dork..but hopefully I can be of help). What is your wedding style going to be???...because CP 2 looks very romantic and more vintage ( I love this CP-I had the same colors in mine when I got married, pale blushes and champagne roses). CP 3 I also love, but this is more simplistic..clean lines, simple tie on the cylinder vase-beautiful as well, I see that in more of an "outdoor wedding" or a wedding by the water. CP 5 I love as well (I can see why your having a hard time choosing) I imagine this in a formal setting, only thing with this is that if you are not having a sit down dinner, will you be having cocktail tables and people will be walking around mingling??? Normally cocktail tables are high and therefore you may not be able to see the beauty of this arrangement because they will not be placed on a normal size table where you can see the roses when you stand up, you'll notice more of the "stems" if they are on a high cocktail table. I hope I didn't confuse you. Alright, those are my favorites!!!!!! Keep us posted on which you decide on. I hope I've helped!
And good luck...