Widex vs. Phonak vs. StarKey?

What is the difference between these 3 hearing aids: Widex clear 440 c4-9 (BTE) vs. X Series Power Plus BTE from StarKey vs. Phonak Cassia SP (BTE)? The pair of hearing aid that went dead on me were Pixel Resound (PL70-D/DI) - I require a powerful BTE pair of hearing aids. I’m just wondering which one is the better hearing aid of the 3 mentioned?[COLOR=#292526]
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