BuddyPress.org

If you used the template pack plugin and BP looks “awful” with your WP theme it’s because the template pack is missing most of the CSS styling. It’s a bare bones to get BP to work inside WP themes. Your statement that there are no good BP themes is flawed in that any WP theme can be used with a little adjustment to the HTML and CSS.

Another reason there not that many BP themes that are different is because all BP themes are child themes and severly retards enabling custom themes but that is another discussion.