[plt-scheme] xxx chooses MzScheme as preferred language

> Let me try the quiz:
>
>> What is the *fastest* Scheme implementation?
>>
>
> Bigloo?

I would put my money on Chez Scheme in this respect.  (Or in some  
cases, Stalin.)  But Chez is commercial, hence its unpopularity.  And  
Stalin is incomplete and unsupported.  The playing field of  
implementations can be really frustrating, with the N features you  
want spread around nearly as many implementations.

>> What is the *most popular* Scheme implementation?
>>
>
> PLT-Scheme?

I think that answer is pretty certainly true.

-Ryan