Boss VF-1 Effect Processor

I'm currently in the process of choosing a Multi  FX unit.
Two choices are left: BOSS VF-1 vs LEXICON MPX200.

I want to use the unit for my 2 synths, sampler, Electric guitar and 
Microphone.  I  prefer twisted sounds to super clean sounds. 
Now i know the MPX has better reverbs but how are the ones on 
the VF-1 ? I've heard they are not very good. 
Also, i would really like to use the Vocoder, is it good ? 

I'm fairly new in making music  and would really appreciate any  
help in the FX department from you guys. 

Thanks for your help.

-- Simon