With grant and smith you have probably the 2 best hookers (if not 2 of the top 4) in the world.
Smith looks very committed to Bellamy (same was cam and Slater were). So definitely his decision will be based around what Bellamy plans with his future (whether is he long term extension at storm, a short term extension, looking at the broncos or a new Brisbane team etc).
Grant (who is the better, more natural, more talented player) looks like he can be persuaded away. Only issue is he is a Queensland boy so will that play as a factor with coming to Sydney? (with the broncos and possibly another Brisbane team coming along, his contract should line up with that in the next few years which will make it hard to lure him over if that is what he wants).
Grant will compliment the team better, as his service, vision, and understanding of when to run etc is far superior. Smith (who has surprised me) is a little more scrappy and an effort type of player, as opposed to a finesse type.
To be honest neither is likely (I’d say around 10% chance) in my optioning. Tigers do have 2 young hookers. And again it’s hard because 2 normally don’t go into 1 unless she is a big goer and keen. So there are opportunities to upgrade on what we have (in saying that Phil Gould in the 9 would be on par with katoa and dietz).