There’s a battle brewing between two real estate titans as Starwood Capital Group and D.R. Horton are both angling to acquire Forestar Group, a residential and mixed-use real estate developer. Starwood wants to buy the company for $14.25 per share, while D.R. Horton wants to buy 75% of the company for $16.25 per share. But Thursday, Starwood upped the ante by raising its offer for Forestar.