AT guns are way over costed in BA. If you want one in your list it's much better to pay the extra points and have it mounted on a vehicle of some sort. They really only make sense in a themed list, like a British para list for Market Garden.
If you want a Sherman in your list, the 105mm howitzer version is a better choice than a standard Sherman. It's cheaper, and the gyro-stabilised 2d6 HE will red mist infantry units. It's not as good against tanks, but it does do d3 pins against them, as opposed to just the one that an AT gun does, which can prove almost as useful. Kit it out with a pintle MMG and cancel thin sides and it'll only cost 245pts.
On the other hand, if you want something cheap and cheerful the M3 Stuart is a good choice. I've had a lot of success with my USMC Stuart. A light AT gun and three MMGs on a regular recce tank for 135pts is excellent value. Lately I have leaned towards the lighter, cheaper tanks with a few MMGs that can dish out lots of pins on infantry units.
Have you looked at playing at 1250pts? My group have been playing at that for a while now, and it really is the sweet spot. Throwing in that maxed out tank doesn't feel so bad, and it lets you take a couple of units you might not normally consider.
If you want a Sherman in your list, the 105mm howitzer version is a better choice than a standard Sherman. It's cheaper, and the gyro-stabilised 2d6 HE will red mist infantry units. It's not as good against tanks, but it does do d3 pins against them, as opposed to just the one that an AT gun does, which can prove almost as useful. Kit it out with a pintle MMG and cancel thin sides and it'll only cost 245pts.
That's why you always pay the 10pts for recce. It's an invulnerable save that you don't have to even roll. The trick is to make sure it's one of the first units you activate, so you get to dole out all the hurt it can before someone draws a bead on it and forces the recce move. Points for point, it's probably the best US tank in the game. A veteran light recce tank with the ability to put out d6 HE and 7 HMG/MMG shots for 225pts really is a no-brainer. By the way, it's no faster than a Sherman, even though it should be.
On the other hand, if you want something cheap and cheerful the M3 Stuart is a good choice. I've had a lot of success with my USMC Stuart. A light AT gun and three MMGs on a regular recce tank for 135pts is excellent value. Lately I have leaned towards the lighter, cheaper tanks with a few MMGs that can dish out lots of pins on infantry units.
Have you looked at playing at 1250pts? My group have been playing at that for a while now, and it really is the sweet spot. Throwing in that maxed out tank doesn't feel so bad, and it lets you take a couple of units you might not normally consider.
