Well, I always peel and core my fruit when I'm making smoothies but I don't have a very powerful blender. If I had a vitamix I would prob just chuck it all in...dreaming of the day I can afford one. :-)
sv3, you and me both!!!! i think i'll eventually cave and buy one this fall if i'm in my own apartment. i mean, i'll need a new blender anyways and i don't have a problem with spending more to get a damn good blender. i have to cut all my fruits up (my blender can't do apples at all) very small, but I still end up with a chunkie smoothie.
I splurged and purchased a vitamix. I put the entire fruit in seeds core and all. I do ruffly cut them up though. Usually I put some water in with whatever green im using(I dont chop the greens). I blend them untill liquid then i add the fruit.
I have a vitamix. Never peel my pears or apples. I do take out seeds since I eat so many apples and the arsenic content. But I don't sweat it if a seed gets in now and then. I never cut the greens off my strawberries either. I throw the whole thing in.
I have an Oster 1000 watt blender that was $50 at Costco. It'll do anything I put in there. I take out the seeds, but don't peel. However, I did see a Vitamix demo at Costco today, it seems like they had them for $350, I am not sure if that is a good deal or not.
I de-seed apples and citrus. Foods with a tough skin like mango or kiwi or citrus I'll peel, but apples I'll never peel.
I also peel carrots (but after washing them thoroughly, I don't get too zealous). But I like to experiment. (I have a Blendtec HP3 and it's got the power to puree some tough stuff.)
I have a Blendtec so I can put things in whole and I generally don't peel, unless I get a batch of cukes and the first one is really bitter or something. As for seeds, it depends on the mood I'm in that day. Usually in.
The real bonus with a powerful blender, though, is herbs! I throw parsley or cilantro or basil in stems and all. Its fast, easy and nutritious.
Ginger is the one you have to watch. I find that it has to be sliced thin across the strings or you get "hair" in your recipe every time no matter how long you run the blender or how good of a blender you use!!!