ADOX MCC 110 , New Berger CB and ILFORD MGWT have almost the same glossy surface when air dried and flatened in a hot press against archival board. According to specifications MCC 110 and MGWT have a 255 g/sqm paper base and New Berger CB 280 g/sqm . When you hold them in your hand, it is very difficult to tell any difference.
I still have a few sheets of the old Berger Prestige CB and it feels slightly more heavy and a bit stiffer. The glossy type has a surface that I feel is somewhere in between the gloss of the other three and a semimatt paper.
When it comes to base tone I would rank the papers as follows ( from most neutral to most creamy warm ) :
ILFORD MGIV - ADOX MCC 110 - New BERGER CB - ILFORD MGWT - Old BERGER Prestige CB .
These are my subjective opinions after developing under comparable conditions and as I wrote before I will try to evaluate the papers in both neutral and warmtone developer.
I don't have enough experience from toning to make any comments on that.
When I have more results I will be back, but it may take some time. Whatever paper you choose I'm quite sure you will be satisfied . They are excelent, all of them.
Good luck !
Karl-Gustaf