Thank you for your replies.
I have seen the Dev Diary response posted all over the forum Yet people seem to talk as if there making maps for their mods.
I guess Radiant does have more features and you can manage larger projects, but I find the very basics tricky and annoying.
MULTIPLE CAMERAS ( thank you for including them )
With Hammer I can click on a camera and jump to either side of a wall to make sure things line up ok. Plus, if I want to make a new one i just draw a line in the general direction of where I want to look.
I couldn’t find any multiple camera support in Radiant and although you can bookmark places in Quark, it is still clumsy having to cycle through them all.
I haven’t tried all the variations of Radiant, I think I used GTK?
ADDITIONAL - GRAB HANDLES FOR BRUSHES
I also found it easier to select and deselect brushes in Hammer (no need to hold down keys), and was frustrated not to see any grab handles for stretching brushes. (Even MS Word has grab handles )
http://developer.valvesoftware.com/wiki/Hammer_Selection_Tool
Hope this helps people starting map making and making the switch from Hammer.