doris mentioned Kay Thomson a few posts upI'd put Krieg and Ruh in a class by themselves, with maybe a slight edge to Krieg.
Others from that era who haven't been mentioned yet:
Kay Thomson
Jeri Campbell
Joanna Ng (had much of a senior career)
Yulia Vorobieva
Ann Patrice McDonough and Naomi Nari Nam were also quite strong spinners at young ages, not quite as fast when they finished growing (i.e., post 2000 anyway).
Its sad watching Tonya when she was younger having all that potential and then just wasting it like she did. She was probably actually more artistic when she was younger too. Those spins were quite good but she never kept really improving as she should have. Not with the talent that she had.
Tonya was victimized by USFSA politics too, often. Yes she sabatoged herself at times, like gaining weight and being undertrained for the biggest few months of her career in early 1992.