Is there a better camera than the Canon 1Ds?
Please define "better".
Higher image resolution? Yes: Hasselblad-Imacon H2D-39 (39MP).
Higher frame rate? Yes: 1DMkIIN and D2X (8fps)
Higher resolution of a distant or small subject with a given telephoto or macro lens?: Yes, because that comes down to sensor resolution in lp/mm, where the DSLR leaders are the D2X, E-500 and E-330.
Smaller, lighter, more portable? Yes; almost every other DSLR is "better" by that standard!
Better all round camera for you? That is entirely up to your needs, wants and priorities.