Pulsar, since many experts say that certain generation of the Familia is a headache plus we also used to own one for a short time before, only that it was a sedan and it sips petrol like hell.
I love both. Their performance is almost identical. I loved driving the 117 in Gran Turismo 4 and 6. But the Mazda is much more rare and more unique because of the Wankel engine. They both look very nice...
I'm taking the Alpine, but here's my own personal desirability ranking:
1: Alpine A110
2: Porsche 718 Cayman T
3: Audi TT RS
4: BMW M2 Competition
5: Toyota Supra