Originally posted by exigentsky
It seems intersting and I considered it. But I was really discouraged by the fact that after Bc4 Hiarcs 10 evaluates the position as -1.27 (due to Qh4 and Nc6) compared to -0.53 with Nf3. Such discrepancy gives me little confidence in the Bc4 line. It's a shame because it looked intersting.
You really shouldn't take much notice of engines in wellknown opening positions. As someone who has played the King's Gambit for years, both 3.Nf3 and 3.Bc4, including OTB against IMs and GMs, I would say that the relative merits are as follows:
3.Bc4 has in general less theory to learn and fewer critical lines. It is, in a way, safer, since it is harder for black to play to hold on to the gawn with g7-g5. On the other hand, it is probably less ambitious than 3.Nf3 and easier for black to demonstrate equality against.