EXS 24 Logic Sampler Users Group

I'm interested in getting many opinions as to which software sampler to invest in andrest 
my Logic Audio Pro hat on.  Mach5 or EXSP?  I'd appreciate any 1 out there who will answer 
the following 7 questions below and also provide me with any additional info that u feel 
may be relevant and worthy of consideration.

1.  Which 1 has "ROCK SOLID", reliable performance with LOgic Audio Pro?

2. Which has the best polphony?

3. Which1 crashes least?

4.  Which 1 has the best continued, regular updates and improvements?

5. Which 1 comes with the best tech support?

6. Which 1 has the best user interface?

7.  Which 1 is easiest to learn & use.

Thanks,
Maestro  :)