ZX5-N Lens

[John Bevans]

I have a new-to-me ZX-5N.  It came with  the Tamron 1:3.5 - 5.6 28-80
zoom.
I have been reading the posts about the Sigma 28-135 and am wondering if
this is a
superior lens to the Tamron.  I want to keep an AF zoom to go with some
MF prime lenses.  I am mainly interested in the zoom lens for some
action shots and family pictures.  I like the ZX-5N and would like the
best zoom.  Any suggestions as to what I should be using?