Hollow Ichigo fights like a berseker, but his movements are still fast while in his bankai form (for obvious reasons), and he doesn't teleport. He simply moves at high-speeds that are equal (if not superior) to Flash Steps. Also, the only other model out there aside the "Project Ichigo" model (which has a texture for Hollow Ichigo) is one that goes over Ike who's in Bankai form, and since the Project Ichigo version is still in the works Hollow is pretty much limited to the latter model (unless there is another model out there that I don't know about). Oh yeah, here's the model if you didn't already know about it.
http://forums.kc-mm.com/Gallery/BrawlView.php?Number=6331Also, the armor thing isn't a good idea, because hardly anyone in Bleach WEARS armor. Like I said before, Hollow Ichigo fights like a berserker and as such ignores practically every injury he's given (he was able to completely own Byakuya in Bankai form even after Ichigo had his right foot stabbed, his right shoulder shot through, his injuries taken from the earlier attacks, AND when Ichigo's body was pretty much paralyzed because his inexperience with Bankai caused his bones to crack and shake from his own spiritual pressure. Oh, and lets not forget how he managed to pwn AND kill Ulquiorra evem after Ichigo took a point-blank Cero Oscuras to the chest). Even if Ichigo was wearing some armor, Hollow Ichigo wouldn't need it. Hell the guy would probably discard it instead.