Hi Redsweater, first welcome to TDF
You'll find a lot of info here. We are all happy to answer your questions. I'll try to give you some info based on my knowledge/experience. I own a 4Woods NEOim with a Lilica head. Here name is Lily. She arrived 30 August 2011. She is one of the first NEOim's with the new soft skin silicone Body type
Aesthetically it's a personal choice. Technical the only info I can give you is that NEO was improved in 2010 (NEOim), NEO-J is improved in 2012 (NEO-J/im). Peach New Edition is from 2009 and I guess the latest renewal of Evolution is from 2009 too. But I guess some improvements are applied to all models.Functional fingers
The finger wires are segmented, so there are phalanges. They are nicely posable. Grip is based on friction of silicone; the fingers have no power. Fingers won't break from carefully posing, but they are delicate! If you are not careful enough during dressing or moving, a finger wire may poke through the silicone, or the finger wire may break (get separated) from the hand bone.Soft stomach
I love Lily's soft stomach. But yes, it may stick out a little. This looks quite natural, like a girl with a (very) little belly. I'll try to find or make a picture of it and post it into this thread.Integrated vagina
Lily has an integrated vagina. I choose 4Woods because these dolls are beautiful and realistic. The integrated vagina really looks realistic. And now, with the NEOim you can chose between four different looks of the integrated vagina.
Cleaning is not as easy as with an insert, but IMO it's quite easy using a pear wash (anal douche), a simple pear wash is delivered with the doll. Head attach
The head attach is strong and I don't think a little splash will enter it. But if you put your doll in bath, keep it above the water line!
Good luck choosing your doll!