<IMHO>
There is no perfect tool as there is no real reason to switch from .rpm to .deb or viceversa.
I have always wondered, though there are many open source projects free to derive or contribute, why people prefer to make it again and again from scratch?
There are some issues in any, but we could also find at least two suitable for our needs.
Let's polish existent tools until they fit our needs.
urpmi is good enough. Let's fix it where is wrong, let's add new features when needed.
Alternately, let contribute with some other tools until they are accepted, if they are worthy, they'll be.
Let's focus on real problems. There is no distro yet, let's find what we expect from the new one. Let's do it.
We need to forget about fashion if there are no real arguments to change something.
If something is not broken, don't fix it.
</IMHO>