My boys all have different bowls, it makes no odds although they like their own for personal reasons.
Barclay has a pottery bowl which is open so he can put a paw on the top and tip it enough just to get to the best bits at the bottom (also stops Abarth from filling his face from the other side). Abarth, Polo and Veyron have plastic bowls with high sides to stand on, once near empty they like a game of boot the bowl.
Eric and Bertie, Cooper and Stratos have ceramic bowls, because they are quite violent with the bowl before they have even tried the food. Cooper likes to know where his bowl is and got very upset when he had a plastic bowl because half way through supper Stratos would put his paw on the bowl and 'ping' play tiddlywinks with it. Cooper and Stratos have a bigger bowl, because they are sociable eaters and like to share.