I have never printed lith so my advice may not help you much. I have both a Chromega dichroic head and an Ilford Multigrade 500 head. For VC paper the Ilford head is excellent. I recently bought the RH Designs Anlayzer for the Ilford and it gives fstop timing as well as standarizes the contrast grades for any paper you test. With this sytem I get almost perfect proof prints with no test strips. The stock timer/controller for the Ilford head was a weak area of the Ilford head. With the Ilford head I get a wider contrast range than the dicro head.
If you print from 35mm make sure you get the 35mm mixing box for the Ilford and you will have all the light you will ever need.