Same here, but we can be patient :). I agree with you that Hariyama's most useful abilility is the fact that it is the bulkiest of the fighters, and should be used that way. I also agree with you that those resistances provide lots to Hariyama.And im also one of the people waiting for the suspects to be removed (cough..hurry up....cough...).
I do have the reason that many run Vaporeon over Suicune though - Wish and Water Absorb. Those moves are exclusive to Vaporeon and help especially on Sandstorm teams that need the water resist. However, this isn't OU, so...
Just thinking, wouldn't Regirock do a good job on Typlosion? Omnastar (you mentioned) and Relicanth also do the job, but wouldn't Regirock also provide the not so quick death to HP Grass. It also get's SR (although I still think Spikes on Omnastar is cool). Relicanth gets a free Head Smash.
Erm... just to tell you before you respond, I am not trying to frustrate you :).