Until you've lived with a 30 for a while you will not appreciate the advantages of the engine. It simply wins in every department.
Yes its easier to fry tyres but its also easier to not fry tyres. The larger engine gives you far more control and can deliver the power in a more linear fashion just by throttle control. Theres also plenty of evidence around to shoot down the myth that the 30 cant rev. There is simply no need to make it rev to make most people's target goals so why lean on it if you dont have to. The exponential loads on an engine as revs increase make it a no brainer to keep the revs as low as possible to make the required power.
The built 25/26 does sound amazing up in the rev range, the howl of a well tuned example still makes me wet and I'll bet I am not the only one who can pick it a mile away sight unseen. The smaller rb literally howls as beer baron stated. How many times have you beeen sitting in a restauraunt or similar and stopped half way through mid sentence because you heard that unmistakeable sound. The good news for the forklift lovers is they give nothing away in the noise department. Come sit in my shed and listen to the deep rumble of a lumpy cam driven rb 30, It is pure porn. It doesnt howl on wot, It literally roars. The day it stops making the hair stand up on the back of my neck is the day I'll give it away.
Baron the reason why we dont all drive 5 and 6 litre powered cars is because we drive skylines. Fitting a 30 is a no brainer compared to doing a v8 conversion. Its so easy in comparison its almost cheating.
I'll never dis the 25/26 but given the opportunity I would take the twin cam 30 every time.