anastrozole is the same as liquidex. femara is slightly better as an anti-e but both seem to have more of a negative impact on lipid profiles than aromasin which is much more powerfull than both of them.
Being that there seems to be no generic aromasin availabe (that I have seen) then femara or arimidex is probably your best choice, as the aromasin was rather expensive...
There still isnt a ton of data on aromasin with AAS use, but aromasin seems to be a lot easier on lipid profiles than let and ana. Its also extremely powerfull and while many docs who prescribe it just tell their clients to use 1 tab daily you may be able to get by with much less than that.