If I had to have a cigarette look alike, it would be an 808 style - for the same length 808's have a wee bit more battery capacity.
I would also stay away from 3 piece systems - they're an obsolescent juice delivery system that doesn't work very well. They continue to be sold because new vapers don't know any better than to spend way too much for a cheaper system.
The 2 piece system relies on an atomized cartridge (called a cartomizer for short) combining the atomizer and cartridge from the three piece system into one piece that works better.
If you aren't restricting the choice to just a cigarette look alike system, then one of the current generation battery mods with variable power (wattage) would certainly be my first choice! Zmax (either the smok or the sigeli) or Vamo. Couple it with three pairs of IMR 18350 batteries and you'll have more power and vape time than you need, and the ability to try all manner of carto's clearo's tanks, rebuildables, and all sundry!
Shopping list for brand new vaper to get started -right- for as little cash as possible:
Vamo
6 IMR 18350 batteries
xfest WP2 II charger
vision vivi nova
boge cartomizer (or a few, 5 packs are convenient)
smoktek DCT (comes with a dual coil carto)
3-5 flavors of american made e-juice
This lets you try a few delivery systems to find what will work for you. You can try cartomizers without the tank, cartomizers with the tank, one of the most widely recognized best clearo systems on the market, and a few flavors of juice. Running your batteries in pairs of 18350's as opposed to a single 18650 buys you all the power the unit can produce, as well as the flexibility to explore shorty mode.
If the list above is too much (and I admit it's intimidating when you look at it all at once) you can trim down to 2 batteries (but be prepared to wait while they charge) 1 flavor (hope you like it) make the juice dekang instead of american (be prepared not to like it) get a slightly cheaper charger (not reccomended, but probably won't blow you up right away) and even try to pick only 1 juice delivery system (cartomizers for the beginning wold probably be your best bet).
You will likely end up with at least the above list sooner or later anyway.