RSA 2048 is deprecated and shouldn't be used for keys which are assumed to be used for several years. Instead RSA-3072 and ECC-256 are recommended and secure alternatives. Of course, longer key length are even more secure. AFAIK, The particular curve (Brainpool, NIST, Curve25519) shouldn't make much of a difference in terms of security.
RSA 2048 is deprecated and shouldn't be used for keys which are assumed to be used for several years. Instead RSA-3072 and ECC-256 are recommended and secure alternatives. Of course, longer key length are even more secure. AFAIK, The particular curve (Brainpool, NIST, Curve25519) shouldn't make much of a difference in terms of security.