My g pulchra will kill 1 cricket hold it and kill the second on and eat both of them at the same time. Will literally eat anything that moves in its enclosure. Needless to say she is absolutely un handable, but I still love her.
My 3 biggest eating machines right now are Theraphosa spinipes (although currently premolt), G. iheringi, and L klugi. My A geniculata, N tripepii, and B boehmei would also be- but have cut way back on their feedings as they're at or approaching adulthood. Actually, all of them including P ornata are wannabes. The only two that are only slightly finicky are my largest G pulchra "Scotty" and #3- aka "Little Bigbutt".
I just checked on my 5 T's and it seems 4 have contracted the dreaded premolt disorder so none of mine are even eating. On a normal day my A. brockelhursti(?) is the most voracious, my King Baboon, and my G. pulchra are my top 3 in that order.
B. Smithi's are eating MACHINES!!! I know this is not even related but whenever someone mentions KB (KenneBell) on this site it always makes me feel like I'm on one of my car forums... I'm so confused sometimes it makes me cry