What are your favorite units in the game?

[Pazam]

For tanks, I'm in love with the Israeli Merkava models 3 or if you can afford them the Merkava 4. They have great armor, fire-control and in real-life action can also transport infantry.

If you are looking for an M60-type tank, the Israeli Magach 6 Gal is the best. It has reactive armor [Israel was the first country to use them], a great fire control system [the Gal is actually state of the art and under-represented in the game], and best of all plenty of room inside to store food for the tank crew :-)