Phoenix flight sim is probably the best you'll get for learning to fly a heli, you can download all sorts of models to try out before you decide what to buy if you get hooked with an RTF heli.
Just my personal experience but I bought a Blade CX2 followed by a Blade 400-3D which I bought 2nd hand having only been flown twice and it came with a Spektrum DX6i TX. You can use the DX6i for most heli's as it's full range unlike the original DX6 which is limited on range.
The MCX is fun but so easy to fly that I'm not sure it will prepare you for bigger heli's, but for fun indoors it's probably the best out there as you can fly it in the smallest of spaces.
Having got hooked I bought a T Rex 600 Nitro heli and to be honest between the Phoenix sim and having lessons at my local club I haven't really flown the CX2 or 400 since I got the 600. You'll get far longer stick time from a nitro than a large scale electric. The cost of the batteries is high, for every 10 minutes flight time on a 50 size electric heli you'll need a battery and 6S cells don't come cheap. Plus side of the electric heli's you can fly them anywhere as they don't make the noise of a nitro.
Be warned despite what E-Revonut say's if you get hooked you'll need deep pockets, you don't just break a wishbone or upright when you crash. It's usually main blades, feathering shaft, main shaft, flybar and sometimes tail boom & tail blades & canopy as well.
That's where the Phoenix flight sim comes into it's own as despite the cost it will save you it's price many times over whilst learning.
It's frustrating as hell when you first start but addictive if you like a challenge, and they're far more mentally challenging than a 2 channel RC car!!!