Howdy! IMO VG is a great choice for a first vape. Not as easy to use as some, but it does a great job and it'll teach you a lot about vapor if you let it. Stuff like you don't "smoke" anything, you roast your herb at about 400F until the good stuff literally boils out of it leaving the junk behind.
Sorry, no, not a good machine for concentrates. Yes, very easy to clean if you go with metal or glass. Wood ones don't clean well. Goof up and combust there and you'll be tasting it for a long time.
As far at the best hit part, my advice is 'follow the instructions'.....strange as that idea is to many. Stay away from the metal bats, IMO too hard to aim the fire at the sweet spot. Likewise the coil. I assume the glass version is the same, I just haven't ever tried.
For my money the new Bronze one is the easiest to use and best performing of the lot. Lots of mass so it stays cool, easy to see what you're doing, very 'hand friendly'. Couple that with a torch type lighter able to deliver lots of heat precisely and you're good to go. Mine is fast, easy and effective. The lighter doesn't have to be high end, in fact I suggest a few of these guys:
I've got several spread around here, mighty handy in their own right IMO.