Assuming you mean straight pins, I love the Clover Silk Pins. Silk pins are made to be thinner than other pins. They leave a tinier hole in the fabric & slide into it more easily. I've found them to be very sharp over a long time (though pins do need to be replaced from time to time as they get dull) and the glass heads are nice because I can iron over them -- just don't accidentally sew over them or drop them as they shatter (you know how I know).
The JAF site says they are only sold online, but I've bought them at my local JAF. They 40% off right now.
http://www.joann.com/clover-silk-pin...g/2002723.html