Like I said before it kinda depends on what you want to include specifically, as different cases have different advantages.
The Hadron is a great little case because it can fit so much into a small package, it even has slim ODD support. The trade off is the lack of flexibility and limited cooling capabilities, but if you pick your parts well it works very well.
The Bitfenix cases are all based around a (near) identical internal chassis, so swapping between the models won't change a huge amount other than aesthetics. The big exception to this is that the Prodigy has a vented side panel which means it's going to be better for graphics card temps and more suited to axial fan coolers.
The Hadron doesn't have an obvious competitor for similar form factors, and the reason is the semi bespoke PSU which means it can be laid out in such a way. The SFX powered options will come close in terms of volume, so the ones I mentioned previously - the RVZ01 and ML07 specifically as the FT03-Mini will be over-budget, but again they will come in with limitations on CPU coolers.
If you are looking for CPU cooler flexibility then the best cases around are the Bitfenix ones as they will fit the vast majority of coolers, both air+closed loop. If you are looking at closed loop coolers specifically then the Corsair cases are well suited, while the Node 304 is a good pick for air (or smaller radiators).
If you do decide the Hadron is for you then as long as you have a blower style graphics card, a motherboard with a fairly clear "top" edge (and good CPU socket placement) and a sensible cooler it'll be a good performer. Just be aware that it might not be the strongest overclocker or the quietest machine (noisy PSU+ fans potentially working harder).