Whatever preamp you choose, make sure that you can select 0 picofarads of capacitance, or at worst case 100 picofarads, or less. The AT has a rising high end response and that can be exacerbated by high capacitance phono stages. And your phono cables and tonearm wire are already adding capacitance.
The rest is just personal preference and any modern phono preamp should accurately follow the RIAA curve.