Haven't personally owned it - I did have over 2 great years with the H5 though...I skipped the H9 after reading too many complaints and problems and not being too impressed with the samples. I'd have to say that both user reviews and samples and shots I've seen from the H50 over on dpreview and other photography sites look quite good, and it seems to perform better and get much better user reviews than the H9.
A few H5 users I know who loved those cameras and didn't like the H9 seem to be much happier with the H50. I'd go to some of those photo sites and dig through as many different kinds of shots as you can find, to see if it looks like it would work for you.
Nowadays, I don't think there's a whole lot of difference performance-wise between any of the super-zooms - Canon, Olympus, Sony, Panasonic, Nikon, and Fuji all seem pretty well equals overall with their ultra-zoom models...so go with the one that has the best price, best ergonomics, best features, or best samples for you. If you've already got H9 accessories, that might make the decision easier since you can still use teleextenders and filters on the H50 from your H9.