Term
From a flight safety standpoint the 412 config has proven far safer in the past ten years than the S-92 and the Super Duper Puma.
No one has died in a 412 due to loss of lube like Cougar S-92, maybe because Bell did not actively market it as having a run dry capability. Therefore when loss of oil pressure occurred the crews new to land as soon as they could. Even in these rare events the 412 transmissions lasted as long or longer than the 92 due to superior design.
As to the Puma's their lack of drive system safety needs no repeating.
The Sultan
Note: One 412 that had a main shaft loss of drive was because they never torqued the bolts. Even then no one hurt.