I agree that the other Masters dont get as much affection. There was a previous post a few months ago that voted for best master, and both Ramos and Raspy scored highly.
I feel Colette gets the glory for 2 reasons, 1 is she is a second book master, and like most masters in book two, has much better options for mobility shenanigans, which is key to most schemes and strategies.
2, thanks to her mobility she is very much harder to pin down and deal with by other Masters.
Raspy and Ramos are quite slow, although are in their own right very good.
Marcus is simply least understood. Having played against Marcus with my Colette, I have a greater respect for him, but he does seem to rely on non Arcanist beasts to make him competitive....
Just my thoughts.
P.s. I for one push the Collette banner simply for a bit of banter and friendly competitiveness, not necessarily because I dislike the other Arcanist Masters, others may be in the same boat?