The PA Oscuro is PA broadleaf so the differences compared to CT broadleaf are very slight. If I had to nitpick I'd say the CT is bit more oaky and mossy and has thicker veins. If you enjoy broadleaf I'm sure you'll like it and I wouldn't be surprised if you couldn't tell the difference.
FWIW My experience has been with using WLT PA Oscuro and LO DW1 CT broad