Featherweight, clearly. You mentioned Lebedev and Alexeev as prospects at Cruiserweight??? In what world are a 30 year old and a 29 year old prospects? Not only can you go that deep in the division at FW, but you also have 6 or 7 top big-time quality fighters in Gamboa, Lopez, John, Rojas, Vazquez, Marquez and Caballero, etc. There are also others who are coming up, or others who have a loss or two on their records who can challenge for a title any day. These include Mikey Garcia, Concepcion, Yordan, Barros, Piriyapinyo. FW division is DEEP and solid.
Maybe, but the top at cruiserweight is much weaker. There isn't anyone with a talent level similar to Lopez, Gamboa or even Caballero.