Ouch... attitude :?
I find that my taste in these things can change over time. I hated slate at first, and loved the look of THR. Nowadays, I'm quite fond of slate, and reserve THR for very particular circumstances, believing that it's more of a specialty look--one that doesn't go well in a lot of tanks.
Give it some time and you may like the lava rock... Until then, consider slate stacked to create apertures for territories. Also, (fossilized) coral arches can sometimes make an interesting addition to African Cichlid tanks. These will add to the buffering capacity of your tank and raise the pH, so they're ideal for African cichlids. I'm a big fan of slate in cichlid tanks, as it's a really cheap and easily-moved way of creating territories. It does not, however, raise pH, if that's what you're looking for.