I like my 125s, if you consider them custom. Ghosts are nice but really slippery when you get them, plus not everyone likes the thickness.
Raiders are cool and come in white now if you want to avoid black decks.
I personally don't like Guardians. The style is cool and I have no qualms about the quality of the cardstock, but I don't like the backs much. They printing isn't as fine and detailed as I hoped when I ordered them.
I'll put in my plug for White Knuckle decks. UV 800 Finish on Bicycle stock. Every card is unique, including the spot cards, and everything was drawn freehand. A bit pricey, so that's a huge putoff if you don't want to invest in a bulk buy. Still, gorgeous, quality cards that are worth the money if you want to do some magic with real art.