She definitely has grown as a person. Some don't like the fact she lost her temper somehow, but I like the changes in her personality. For the first time in centuries she doubted herself, while living with the wolfriders, what's always interesting. She's not perfect, what's better. She's not one of my favourite elves though.
She's such a warm loving elf. And she wouldn't be the same without Cutter ofcourse. Like they say 'Cutter is life'.
Another thing I like is that in the novelization 'the quest begins' Leetah actually says she loves Cutter. There is a lot of love in elfquest, and the elves are very open, but it's the only time I can remember an elf said 'I love you'.