Hello!
We are each entitled to our own opinion and I still like REALbasic.
1.) All your files are in one project. All your source code, windows, etc. This personally makes it easier for me as there are less files to take care of.
2.) Each control has every function layed out in the IDE. Just choose one from the list and go. If you need help just one keystroke away from a very comptrhensive guide. PB on the other hand has a help file but most of the controls are under construction or hard to understand.
3.) You have one project for compiling for Macintosh 68K, Carbon or Windows. Project builder has one project but can only compile Cocoa apps that will not run in Classic or on Windows.
Yes, Carbon and Cocoa have a LOT of differences. REALbasic also does not give alot of stuff for free (sheets, drawers, etc.) but it does give out things that PB does not (sprite, 3D surface, etc.) and even though it is lacking you can download tons of plugins that will give you acess to OS X's toolbar button, the toolbar, the preference bar found in Mail, etc. And also, Carbon and Cocoa seem to me to run the same in OS X.
The point about big app sizes: yes I can see this, my app weighed only 700K in Project Builder but now weighs about 3MB. Yes this is a big increase but when you take into contrast the number of things you are getting it is all worth it. And, if you want a smaller app size, just get Stuffit Deluxe. I got my 3MB app down to about 500K!
This is only my opinion, I know others have different ones. Please do not criticize me about it although I welcome hearing your opinion.
Have a great day!
Albert