Nice work @Kawwak! @Spoygg compiled a list of the prestige values post patch - here were his results;
Sorted highest to lowest:
Decorative Blink 180
Decorative Dark Matter 180
Decorative Oort Stone 180
Decorative Rift 180
Compact Blink 160
Compact Dark Matter 160
Compact Oort Stone 160
Compact Rift 160
Advanced Compactor Power Coil 150
Advanced Extractor Power Coil 150
Advanced Forge Power Coil 150
Advanced Mixer Power Coil 150
Advanced Refinery Power Coil 150
Advanced Workbench Power Coil 150
Decorative Amethyst 120
Decorative Diamond 120
Decorative Emerald 120
Decorative Ruby 120
Decorative Sapphire 120
Decorative Topaz 120
Compactor Power Coil 100
Extractor Power Coil 100
Forge Power Coil 100
Location Signal 100
Mixer Power Coil 100
Refinery Power Coil 100
Workbench Power Coil 100
Compact Amethyst 80
Compact Diamond 80
Compact Emerald 80
Compact Ruby 80
Compact Sapphire 80
Compact Topaz 80
Machined Titanium Alloy 80
Spark Core 80
Refined Titanium Alloy 70
Refined Titanium Alloy 70
Titanium Crucible 70
Compact Titanium Alloy 60
Compact Titanium Alloy 60
Machined Gold Alloy 60
Machined Silver Alloy 60
Compactor 50
Extractor 50
Forge 50
Iron Crucible 50
Machined Copper 50
Machined Iron 50
Mixer 50
Refined Gold Alloy 50
Refined Gold Alloy 50
Refined Silver Alloy 50
Refined Silver Alloy 50
Refinery 50
Titanium Fire Pit 50
Compact Hard Coal 45
Compact Gold Alloy 40
Compact Gold Alloy 40
Compact Silver Alloy 40
Compact Silver Alloy 40
Gleam Lantern 40
Iron Fire Pit 40
Refined Copper 40
Refined Copper 40
Refined Iron 40
Refined Iron 40
Compact Coal 30
Compact Copper 30
Compact Copper 30
Compact Iron 30
Compact Iron 30
Guild Crest 30
Portal Conduit 30
Portal Conduit 30
Refined Gleam 30
Refined Gleam 30
Stone Crucible 30
Stone Fire Pit 30
Workbench 30
Crafting Table 20
Gleam 20
Mannequin 20
Compact Soft Coal 15
Lantern 15
Storage Block 15
Storage Shelf 15
Amethyst Torch 10
Dark Glass 10
Dark Glass 10
Diamond Torch 10
Emerald Torch 10
Glass 10
Igneous Brick 10
Metamorphic Brick 10
Natural Crystal 10
Pay Lock 10
Ruby Torch 10
Sapphire Torch 10
Sedimentary Brick 10
Slide 10
Topaz Torch 10
Trampoline 10
Decorative Igneous Rock 1 8
Decorative Igneous Rock 2 8
Decorative Metamorphic Rock 1 8
Decorative Metamorphic Rock 2 8
Decorative Sedimentary Rock 1 8
Decorative Sedimentary Rock 2 8
Request Basket 8
Shop Stand 8
Chair 5
Compact Clay 5
Compact Peat 5
Compact Silt 5
Donation Box 5
Flower 1 5
Flower 2 5
Flower 3 5
Flower 4 5
Lock 5
Plinth 5
Refined Igneous Rock 5
Refined Igneous Rock 5
Refined Metamorphic Rock 5
Refined Metamorphic Rock 5
Refined Sedimentary Rock 5
Refined Sedimentary Rock 5
Sign 5
Spark Cord 5
Table 5
Torch 5
Warp Conduit 5
Ladder 3
Ancient Wood Timber 2
Ancient Wood Timber 2
Basic Torch 2
Igneous Stones 2
Igneous Stones 2
Lustrous Wood Timber 2
Lustrous Wood Timber 2
Metamorphic Stones 2
Metamorphic Stones 2
Sedimentary Stones 2
Sedimentary Stones 2
Twisted Wood Timber 2
Twisted Wood Timber 2
I think in order to reduce lag, and the exploitation of spamming machines, they should have their prestige values either lowered, or have it so they have high diminishing returns - ie; 1 Spark Core is 80, 2 will give an additional 40, 20, 10, 5…
The system is going through many changes though, as mentioned by @james;