I can much easier afford an Adder and I'm mainly interested in missions, and I want to get into mining. But I also would like something "tough" in case I get in a bind. So, Adder, or Viper MKIII? 
Surprisingly they cost almost the same to A spec, if you get into a bind the Vipers speed is your friend but the Adder has better range and cargo capacity, if you want to try mining both are capable but you'll have to manually scoop the ore (a Cobra 3 or 4 makes a much better miner).
I like the Adder but I find the cockpit view very distracting but I'd also choose the Viper for its much higher speed, better firepower and shields, it's what I use in CZ's because it's small, fast and hard to hit.
http://coriolis.io/outfit/adder/03A3A3A1D2A3D3C1b18180004024001012h.AwRj4yyA.Aw1+kA==
http://coriolis.io/outfit/viper/03A3A3A2D3A3D2C1b1b1919000402400124.AwRj4yyA.IwBj4yWI?bn=Viper LR
ViperIII is fighter. And very good one. But doing anything other than figting in it will be a pain - low jump range, small/few internals.
Adder is by far less capable in combat, but has better range and more internals => better for multipurpose use.
I definitely want something I can do bounties with and not get my ass handed to me.![]()
Cool! I need to save first. I have enough to get the Viper, but no modules.Then the Viper is for you.
Make a little extra credits with your Viper, then buy and build a D-Rated Adder, as she can Explore, run courier and mine all day long. Upgrade as you go. This is exactly how I started ED.