hmm i have not had a walk through the St Kilda gardens, been past it many times, but didn't expect such beauty inside. Mind you the Williamstown Gardens are quite similar.
St Kilda Botanical Gardens are fantastic! It's great fun to carve through the gravel paths on my ride to work... The rainman is cool - a nice addition to the duckpond.
They are pretty nice and still on a human scale. I haven't been to the Willie gardens, but I will in the future.