I do a fair amount of pike fishing on the Norfolk Broads in the UK i use a mixture of deads, mainly herring,mackerel,sardine, lures and live baits mainly roach and rudd.
During the winter on the broads the pike can be very picky and a livebait will turn a fishes head far more than any dead or lure IMO.
In the UK there are certain rules about livebait,it must come from the venue being fished you are not allowed to catch the bait and then move to another venue without a section 30.Certain venues will not allow any livebaits mainly because venues like loch lomond have become populated by non indigenous species due to the use of live bait.
The UK is full of anti angling nutters that want livebaiting completely baned,but will wait and see if that happens I should imgine they will get there way as usual.