With the introduction of the Z-95 at a price as low as 95 points it seems obvious to compare it to the TIE Fighter.
What does the Z-95 have that the TIE Fighter does not:
2 points of shields, but with one less hull it is only a net hit increase of 1 point. It will be slightly more resistant to crits.
Target Lock, but as we have found Focus is almost as good an offensive action (if you ignore crits it gives has the same expected number of hits) Of course there are some advantage to the TL, most notably the ability to keep it and stack it with a focus. TL also allows you to shoot missiles.
Missiles, if anything this is the Z-95 greatest advantage over a TIE. It does increase the price of the ship considerably, but it could lead to one heck of an alpha strike.
What does the TIE Fighter have that the Z-95 does not.
An extra agility dice, I think this more than makes up for any extra hits the Z-95 can take.
An Evade Action, I think this will be more useful on the named (more expensive) pilots, who you want to keep alive (and discourage shots at). It also further increases the TIEs edge in defense.
Howelrunner, this may not be obvious, but Howelrunner is a staple of any TIE Swarm list. Her ability to bump everyone who is close enough makes swarms all better. Granted we have no idea what ability the named pilots of the Z-95 will have, but there won't be as many for sure.