Traditionally, most people (including me) have found Casa Vasca to be the best of the lot. However, on my last two visits (separated by a few months), I was actually not that impressed by Casa Vasca. Not bad, but not anything extraordinary either.
Fornos (Note: there is no apostrophe in the name, which means Ovens in Spanish) is good, but the waiting lines tend to be impossibly long unless you get there very early.
About a block past Fornos, on Ferry Street, are Iberia and Iberia Peninsula. I find Iberia Peninsula to be good, and in fact, my most recent visit impressed me more than my last two visits to Casa Vasca did.
Another one to consider is Seabra’s (this one does have an apostrophe in the name!) on McCarter highway, in the building that used to house Don’s 21 Diner. Seabra’s and both of the Iberias have the advantage of free parking, in addition to good food. And, as you may know, parking is a very scarce commodity in that area of Newark.
Tony De Caneca (sp?) is one that I am not familiar with.