A lot of the versioning conflict and problems that rpm used to have aren't as bad anymore, and honestly, if someone ports the Smart Package Manager over then its all moot. It tends to b e smarter at package resolution than even aptitude. At least in my experience. Honestly the direct RPM VS DEB is mostly moot as they are both mature packaging systems.

But again, the LSB and *structure* of the OS's that use rpm are lacking severely. /etc/sysconfig/network-scripts/ifcfg-eth0 over /etc/network/interfaces for example. These are the changes I don't like.