stoopidfish, what exactly is your project? What aircraft are you after? Because it sounds like your doing a very similar series to what I am doing.
I too, am enormously fond of Tamiya's product. Every single kit has been superb, I have built many Formula 1 cars, aircraft and smaller street cars and the quality is amazing.
Anyone seen the Lancaster 'Dam Buster' with actual engines which have all four engines operating by switch, amazing kit!
I have lately been buying the cheaper Airfix and Revell 1:48 models, and up until now, they have been quite satisfactory. The Mark 2 Spitfire from Revell is a shocker of a model. None of the parts fit, it sits far too high on the undercarriage, the tailwheel, gives far too much clearance over the tail section, the left wing has a significant droop in it. I have fixed all of the above after much hassle, except for the drooped wing, which looks close to undisplayable! Not sure how to fix it yet...
Tamiya is undisputed number 1 I believe.