What is better for age spots: BBL laser or Halo laser?

If your main concern is pigmentation and sun damage then BBL would be best treatment for correction. Expect your pigmentation spots to turn to a darker shade and micro crusting may occur in the following days after treatment. If you have concerns with uneven texture, pigmentation, fine lines and pore size Halo is a fantastic approach that is able to penetrate heat into the dermis that helps stimulate collagen and vaporize tissue on the superficial layer to create a more even and softer complexion.

If your main goal is to treat vessels and pigmentation then BBL may be a good treatment for you to start with.  You will have very little downtime and can wear makeup the same day.

HALO laser is wonderful to treat, fine lines, enlarged pores, redness, pigmentation and improve tone and texture. It is a very tunable procedure that is customized for each skin type. You will experience several days of downtime with some swelling and crusting with what is called MENDS (microscopic epidermal necrotic debris.)

You will get the best treatment when both BBL and HALO are performed together.  The best anti-aging duo!
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BBL has multiple wavelength settings to treat patients with acne, pigmentation, vascular lesions, deeper lesions, & hair removal.  The Halo Fractional Laser is similarly tunable by wavelength & effectively treats pigmentation.  However, the Halo also treats skin tone & texture - tightening the skin & smoothing fine lines.  
We recommend a consultation with your Board Certified Plastic Surgeon to determine which modality is best for you!