something i've always liked about ObjC, is that it's generally obvious when to use capital letters, and also, (at least if you follow the apple coding guidelines) arguments, types, variables and selectors don't ever differ by less than quite a number of chars.

of course, code can sometimes lack brevity - it does seem long winded to write something like

    NSMutableDictionary *mutableArgMap = [[NSMutableDictionary alloc] initWithDictionary:argMap];

but i'd choose that over java most times ;)